Electric Bicycles

SUNNIGOO B3 Foldable Fat Tire Electric Bike for Adults – 250W Mountain E-Bike

The SUNNIGOO B3 is a foldable fat tire electric bike for adults that pairs a 250W EU-compliant motor and a 48V 12.5Ah (600Wh) removable battery with 20×4.0" all-terrain fat tires — 35–40 km of pure-electric range, up to 80 km with pedal assist, and hydraulic disc brakes as standard.

Conquer steep trails and city avenues alike with the SUNNIGOO B3 foldable fat tire electric bike. Built for adults who take riding seriously, this 20" all-terrain electric bicycle pairs a high-torque 250W motor with a foldable aluminum frame — powerful where you need it, portable when you don't.

Key Features

• 250W Motor & Shimano 7-Speed Precision – A high-torque 250W brushless motor delivers smooth acceleration and real climbing capability, while the Shimano 7-speed gear system lets you match your pedaling to any terrain. Fully compliant with European e-bike regulations at a safety-limited 25 km/h — a legal electric bike for daily commuting and weekend mountain rides.
• Extended Range: 48V 12.5Ah Removable Battery – The high-capacity 48V 12.5Ah (600Wh) lithium-ion battery offers 35–40 km in pure electric mode and up to 50–80 km in pedal-assist. Includes a 100–240V 2A quick charger with EU plug for fast recharging at home or the office.
• All-Terrain 20×4.0" Fat Tires & Sturdy Foldable Frame – Professional-grade Chaoyang fat tires deliver superior shock absorption, maximum traction and stability on sand, snow, mud and gravel. The lightweight aluminum alloy foldable frame keeps the ride rock-solid without sacrificing portability.
• Premium Hydraulic Disc Brakes & Smart LCD Display – Responsive hydraulic disc brakes give smooth, immediate stopping power even on wet or muddy trails. The handlebar-mounted LCD display shows speed, battery level, assist mode and trip mileage in real time.
• Ready to Ride & Hassle-Free Support – Ships 85% pre-assembled (SKD) so you ride in minutes. Fast EU delivery from our EU warehouse in 3–5 working days, backed by a 2-year warranty and 24/7 customer support.

Technical Specifications

Your Legal Ticket to Off-Road Fun

The SUNNIGOO B3 is the foldable fat tire electric bike that lets you ride where you want without the paperwork. As a 250W electric mountain bike capped at 25 km/h, it complies with EU regulations for standard electric bicycles — no registration, no licence in most member states. That means you can use the B3 as your daily commuter e-bike during the week and take it straight onto gravel trails at the weekend. It's one bike, two lives.

Fold It, Store It, Take It Anywhere

Unlike bulky e-bikes that dominate your hallway, the B3's foldable electric bike frame collapses in seconds for storage under a desk or in a car boot. For riders who compare folding fat tire e-bikes, the B3 stands out by combining genuine mountain-bike capability — wide 4.0-inch tires, hydraulic disc brakes and 7-speed Shimano — with a package that fits a modern European apartment.

Built to Last, Backed to Match

Every component is chosen for real-world abuse: Chaoyang tires for traction, hydraulic discs for wet-road safety, and a corrosion-resistant aluminum frame for years of service. With an EU warehouse shipping 85% pre-assembled, a 2-year warranty and 24/7 support, the B3 is the electric bicycle for adults who want adventure without risk.

Whether it's the morning commute or a weekend trail run, the SUNNIGOO B3 folding fat tire e-bike delivers power, comfort and freedom in one package — and it's backed by SUNNIGOO's European support. Order today and take the long way home.

Frequently Asked Questions about the SUNNIGOO B3

Is the SUNNIGOO B3 legal on European roads?

The SUNNIGOO B3 is a 250W pedelec limited to 25 km/h, which classifies it as a standard electric bicycle under EU regulation (EN 15194 / Directive 2002/24/EC). In most EU member states—including France, Spain, Germany and Italy—it can be ridden on public roads without registration, licence or insurance. Always check local regulations, as helmet and lighting rules vary by country.

How fast is the SUNNIGOO B3?

The B3 provides electric assistance up to a governed top speed of 25 km/h (15.5 mph), fully in line with EU e-bike regulations. The Shimano 7-speed drivetrain lets you pedal faster on flats or downhills, while the high-torque 250W motor delivers smooth, continuous support up to the legal limit.

How far can the B3 go on a single charge?

In pure electric mode, expect 35–40 km; in pedal-assist mode, range extends to 50–80 km depending on assistance level, terrain and rider weight. Figures are measured with a 75 kg rider on flat roads at 25°C without wind. Hills, heavy loads or cold weather will reduce real-world range.

What is the weight and max load of the B3?

The B3 weighs 29.2 kg net (35.7 kg gross with packaging), and the foldable aluminum frame collapses in seconds to fit a car boot or hallway closet. The frame supports a maximum rider weight of 120 kg, with extra room for bags and groceries on daily commutes.

How long does it take to charge the battery?

The removable 48V 12.5Ah (600Wh) lithium-ion battery charges from empty to full in approximately 5–6 hours with the included EU charger (100–240V, 2A). Because the battery is removable, you can charge it at home, at the office or anywhere with a standard wall outlet—no special installation required.

What's in the box?

Your B3 arrives 85% pre-assembled (SKD, front wheel unassembled) with: the folding aluminum frame, 48V 12.5Ah removable battery, EU charger, LCD display, front LED light, Chaoyang 20×4.0" fat tires, hydraulic disc brake system, Shimano 7-speed drivetrain, assembly tools and a printed user manual. Final assembly takes about 15–20 minutes.

Where can I get spare parts?

Genuine spare parts for the B3—batteries, chargers, tires, brake pads and display units—are stocked in our EU warehouse and can be ordered directly through sunnigoo.com or the SUNNIGOO support team. Because every component is a standard size, servicing is straightforward at any local bike shop as well.

Explore Related Models

Compare with other certified models in the SUNNIGOO lineup, all shipped from our EU warehouses:

• SUNNIGOO B4 (full-suspension folding e-bike) — full-suspension comfort on rough trails.
• SUNNIGOO B5 (20" urban fat e-bike, 600Wh) — city-focused fat-tire e-bike.
• SUNNIGOO C91 (1000W, 48V 20Ah fat-tire e-bike) — high-speed flagship fat-tire e-bike.

SUNNIGOO C91 1000W Electric Bike for Adults — High-Speed Fat-Tire E-Bike, 150 kg Load

The SUNNIGOO C91 is a 1000W high-speed fat-tire electric bike built for adult riders who want more power, more load capacity and more terrain freedom than a standard 250W pedelec. With a 48V 1000W motor, a top speed of 55 km/h, a 150 kg max load and a removable battery up to 48V 20Ah, the C91 is ready for private-road riding, trails and heavy cargo. It ships from our EU warehouse with delivery in 3–5 working days and is backed by a 2-year warranty.

What is the SUNNIGOO C91?

The C91 is a high-power fat-tire electric bike for experienced riders. Its 1000W motor and 20×4.0 inch tires give it the torque and grip to handle gravel paths, sand, wet roads and light off-road use, while the 7-speed drivetrain and five pedal-assist modes let you choose between relaxed cruising and full-throttle acceleration. It is not a standard EU pedelec, so public-road use may require local registration as a moped.

How fast is the C91?

The C91 reaches a top speed of 55 km/h on private roads and permitted open ground. The motor responds quickly from a standstill and holds speed confidently even with a passenger or cargo on the rear rack. Always wear a helmet and respect local speed limits and road-use rules.

What range can I expect from the C91?

Range depends on the battery you choose. With the 48V 17.5Ah battery, expect roughly 50–70 km in mixed real-world riding. With the 48V 20Ah battery, expect 60–80 km under test conditions (75 kg rider, flat dry road, eco pedal assist). Heavier loads, hills, cold weather and high speeds reduce range.

Is the C91 legal on European roads?

The C91 is rated at 1000W continuous power and 55 km/h, which is above the 250W / 25 km/h limit for EU pedelecs in most countries. It is intended for private land, trails and roads where local law allows higher-powered e-bikes. In Germany and several other EU markets it may need to be registered and insured as a moped. Please check your national StVZO or equivalent rules before riding on public roads.

What is the weight and max load of the C91?

The C91 weighs 32 kg net and 43 kg gross in the box. Its reinforced aluminum-alloy frame and double-shock rear suspension are rated for a 150 kg maximum load, enough for most adult riders plus a backpack or pannier load. The 170 × 70 × 105 cm frame size suits riders from approximately 165 cm to 195 cm.

How long does the C91 battery take to charge?

Using the included 48V smart charger, a full charge takes 4–8 hours depending on battery capacity and starting level. The battery is removable and locks with a key, so you can charge it indoors at home or in the office. A typical 500–800 full charge-cycle lifespan means years of regular use.

What is included in the box and where can I get service?

Each C91 ships 90% pre-assembled in a 146 × 32 × 78 cm carton. The box contains the bike, charger, basic tools, user manual and pedals. Spare parts, extra batteries and service support are available through SUNNIGOO’s EU support channel. For warranty claims, keep your order number and the original packaging.

Technical Specifications

Built for Power, Load and Rough Terrain

The C91’s 20×4.0 inch fat tires spread weight over a wide contact patch, giving it grip on gravel, wet tarmac and sand that standard city tires cannot match. The dual shock absorbers and front + rear disc brakes keep the ride controlled when the surface is uneven or the load is heavy. A USB charge port on the battery lets you keep a phone or GPS powered on longer rides.

Three Battery Options for Different Rides

Choose the battery that fits your mileage. The 15Ah battery is the lightest and most compact option for short daily loops. The 17.5Ah battery balances weight and range, while the 20Ah battery delivers the full 60–80 km quoted range. All batteries use the same key-locked mount and can be charged off the bike.

Frequently Asked Questions

Who is the C91 designed for?

The C91 is designed for experienced adult riders who want a powerful, high-load electric bike for private roads, trails and permitted areas. It is not a beginner or standard commuter pedelec.

Can I ride the C91 on public roads in the EU?

In most EU countries the C91 exceeds the 250W / 25 km/h pedelec limit. Public-road use may require registration, insurance and a helmet. Always check local regulations before riding on public roads.

How far can the C91 travel on one charge?

Expect 50–70 km with the 17.5Ah battery or 60–80 km with the 20Ah battery under ideal test conditions. Real-world range is lower with hills, heavy loads, cold weather or high speeds.

How long does the battery last before it needs replacing?

The lithium battery is rated for roughly 500–800 full charge cycles before noticeable capacity loss. With normal use this usually means several years of service.

Does the C91 come with a charger and tools?

Yes. The box includes a 48V smart charger, basic assembly tools, pedals and the user manual. The bike arrives about 90% assembled.

What warranty covers the C91?

SUNNIGOO provides a 2-year warranty on the frame, motor and battery against manufacturing defects, plus EU-based support for spare parts and service.

Explore Related Models

Compare the C91 with other electric bikes in the SUNNIGOO lineup, all shipped from EU warehouses:

• SUNNIGOO M1 — 250W city e-bike, up to 120 km range
• SUNNIGOO M2 PLUS — torque-sensor premium city e-bike
• SUNNIGOO B1 — 250W folding fat-tire e-bike

SUNNIGOO B5 Urban Electric Bike – 20×4.0" Fat Tire E-Bike with 600Wh Battery & 120 km Range

The SUNNIGOO B5 urban electric bike is built to move confidently through the city and beyond. With a powerful 600Wh battery, oversized 4.0" tires and EU-compliant Pedelec performance, the B5 blends daily commuting comfort with genuine all-terrain capability — no licence required to ride across the EU.

Key Features

• 600Wh Battery, Up to 120 km Combined Range – The removable 48V 12.5Ah (600Wh) lithium battery delivers 35–40 km in throttle mode and 50–80 km in pedal-assist — up to 120 km combined on a single charge. Charge anywhere with the included 100–240V EU-round-plug charger.
• 20×4.0" Fat Tires for All-Terrain Confidence – Wide Chaoyang fat tires soak up cobblestones, gravel, mud and light snow, giving the B5 the stability of an off-road bike while staying nimble on tight city streets. The compact 20-inch wheels make storage easy in apartments, elevators and car trunks.
• Smooth, EU-Legal Power Delivery – A rear motor paired with Shimano 7-speed gearing provides smooth pedal assistance up to 25 km/h — perfectly compliant with EU e-bike standards, so you ride without registration or a licence across most of the EU.
• Hydraulic Disc Brakes, Front & Rear – Stop with confidence in any weather: front and rear hydraulic disc brakes deliver strong, consistent stopping power on wet cobblestones, gravel trails and steep urban descents.
• LCD Display & Everyday-Ready Design – A built-in LCD screen keeps speed and battery level in view. The lightweight aluminum alloy frame (33 kg net weight) stays practical for daily use, while the rear rack and front basket mounts make it ideal for grocery runs, deliveries and weekend errands. Available in White and Military Green.

Technical Specifications

The Urban E-Bike That Keeps Up With Your Week

The SUNNIGOO B5 is the urban electric bike for riders whose week looks like a checklist: commute, school run, grocery run, weekend errands. Thanks to the 600Wh battery and up to 120 km combined range, you can ride several days between charges. The front basket mounts and rear rack turn this fat tire e-bike into a proper cargo-friendly city machine — no car needed for the daily load.

Fat Tires, City Manners

Big tires usually mean a big, heavy bike. The B5 keeps the best of both: 20×4.0" fat tires for cushioning and grip, but in a compact 20-inch wheel format that's easier to manoeuvre and store than a 26-inch fat bike. It's an electric bicycle equally at home on canal paths, cobblestone squares and light gravel trails — with EU Pedelec compliance meaning no licence, no registration across most of the EU.

A Pedelec You Can Trust

From the hydraulic disc brakes that stop you safely in the rain to the 85% pre-assembled delivery that has you riding in minutes, the B5 is designed to be dependable. It ships from the EU warehouse in 3–5 business days, with local pickup available in Germany within 24 hours — and it's backed by verified rider reviews, so you buy with confidence.

For riders who want a stylish, practical urban e-bike with real range and all-weather confidence, the SUNNIGOO B5 delivers. With its 600Wh battery, fat tires and EU-legal performance, it's ready to become the most useful thing you own. Order today and enjoy fast EU delivery.

Frequently Asked Questions about the SUNNIGOO B5

Is the SUNNIGOO B5 legal on European roads?

The SUNNIGOO B5 is a 250W pedelec limited to 25 km/h, which classifies it as a standard electric bicycle under EU regulation (EN 15194). In most EU member states—including France, Spain, Germany and Italy—it can be ridden on public roads without registration, licence or insurance. Always check local rules, as helmet and lighting requirements vary by country.

How fast is the SUNNIGOO B5?

The B5 provides electric assistance up to a governed top speed of 25 km/h (15.5 mph), fully in line with EU pedelec regulations. The Shimano 7-speed drivetrain lets you pedal faster on flats or downhills, while the 250W rear motor delivers smooth, continuous support up to the legal limit.

How far can the B5 go on a single charge?

In pure electric mode, expect 35–40 km; in pedal-assist mode, range extends to 50–80 km—up to 120 km combined on a single charge. Figures are measured with a 75 kg rider on flat roads at 25°C without wind. Hills, heavy loads, low temperatures or high assistance levels will reduce real-world range.

What is the weight and max load of the B5?

The B5 weighs 33 kg net (40 kg gross with packaging), with a compact 20-inch wheel format that is easier to manoeuvre and store than a full-size 26-inch fat bike. The aluminum alloy frame supports a maximum rider weight of 120 kg, with the rear rack and front basket mounts adding practical cargo capacity for groceries and daily errands.

How long does it take to charge the battery?

The removable 48V 12.5Ah (600Wh) lithium-ion battery charges from empty to full in approximately 5–6 hours with the included EU charger (100–240V). Because the battery is removable, you can charge it at home, at the office or anywhere with a standard wall outlet—no special installation required.

What's in the box?

Your B5 arrives 85% pre-assembled (SKD, front wheel unassembled) with: the aluminum alloy frame, 48V 12.5Ah (600Wh) removable battery, EU charger, LCD display, front LED light, Chaoyang 20×4.0" fat tires, hydraulic disc brake system, Shimano 7-speed drivetrain, rear rack, assembly tools and a printed user manual. Final assembly takes about 15–20 minutes.

Where can I get spare parts?

Genuine spare parts for the B5—batteries, chargers, tires, brake pads and display units—are stocked in our EU warehouse and can be ordered directly through sunnigoo.com or the SUNNIGOO support team. Because every component is a standard size, servicing is straightforward at any local bike shop as well.

Explore Related Models

Compare with other certified models in the SUNNIGOO lineup, all shipped from our EU warehouses:

• SUNNIGOO B1 (20×4.0" folding fat-tire e-bike) — folding fat-tire e-bike.
• SUNNIGOO B4 (full-suspension folding e-bike) — full-suspension folding e-bike.
• SUNNIGOO C91 (1000W, 48V 20Ah fat-tire e-bike) — high-speed fat-tire e-bike.

The SUNNIGOO B4 is a full-suspension folding electric bike with 20×4.0" fat tires, a 250W EU-legal motor and a removable 48V 12.5Ah (600Wh) lithium battery. It is built for riders who want a comfortable commuter e-bike during the week and a capable off-road fat-tire bike on weekends, with a range of 50–80 km in pedal-assist mode and a top speed of 25 km/h.

How fast is the SUNNIGOO B4?

The B4 reaches a top speed of 25 km/h in pedal-assist mode, which matches the EU Pedelec limit for e-bikes across most European countries. The motor stops assisting above this speed, so you can ride on public roads without registration, insurance or a driving licence in most EU markets. Throttle-only mode is intended for private property or off-road use where local rules allow.

How far can the B4 go on a single charge?

Range depends on how you ride. In pure throttle mode the B4 covers about 35–40 km. In pedal-assist mode the range extends to 50–80 km. The 600Wh battery gives you enough range for several days of city commuting or a full day of trail riding. Range is measured with a 75 kg rider on flat, dry roads at 25 °C and is affected by terrain, rider weight, wind and assist level.

Is the SUNNIGOO B4 legal on European roads?

Yes. The B4 is configured as a standard EU Pedelec with a 250W motor and 25 km/h assist cut-off, so it complies with EN15194 rules in most EU countries. You can use bike lanes and regular roads where bicycles are allowed. Always check your local e-bike rules before riding, because some cities have additional helmet or equipment requirements.

What is the weight and max load of the B4?

The aluminium-alloy folding frame keeps the net weight to 30 kg, which is reasonable for a full-suspension fat-tire e-bike. The package weighs about 37 kg. The frame is rated for riders up to 120 kg, including any luggage on the rear rack.

How long does it take to charge?

Using the included 100–240V, 2A EU-round-plug charger, the 48V 12.5Ah battery charges from empty to full in approximately 6–7 hours. You can remove the battery to charge it indoors at home or at the office, which is useful if you park the bike outside.

What's in the box?

The B4 ships 85% pre-assembled. In the box you will find the folded bike frame with rear wheel attached, the front wheel, the removable battery, the charger, a basic tool set, the user manual and safety instructions. You will need to attach the front wheel, adjust the handlebars and tighten a few bolts before your first ride. Most riders are ready to go in 15–20 minutes.

Where can I get spare parts and service?

SUNNIGOO keeps brake pads, tyres, inner tubes, chargers and replacement batteries in stock at our EU warehouse. If you need help with assembly, maintenance or warranty, contact our EU-based support team through the contact page. The B4 is backed by a 2-year warranty and 30-day return policy for peace of mind.

Technical Specifications

Range and speed are measured with a 75 kg rider on flat, dry roads at 25 °C without wind. Real-world results vary with terrain, rider weight, cargo and riding style.

Explore Related Models

Compare the B4 with other SUNNIGOO e-bikes, all shipped from our EU warehouse:

• SUNNIGOO B1 – 20×4.0" folding fat-tire e-bike.
• SUNNIGOO B5 – urban fat-tire e-bike with front basket mounts.
• SUNNIGOO C91 – 1000W high-speed fat-tire e-bike.

SUNNIGOO B1 Folding Electric Bike for Adults – 20×4.0" Fat Tire E-Bike

Upgrade your city riding and off-road adventures with the SUNNIGOO B1 folding electric bike. Specially engineered for adults who want flexibility, style and efficiency, this 20×4.0" fat tire e-bike delivers outstanding balance, power and long-range performance on every surface — from morning commutes to weekend gravel trails.

Key Features

• 250W EU Standard Electric Bike Motor – A compliant 250W high-efficiency motor paired with a Shimano 7-speed drivetrain delivers smooth hill climbing and a safe, regulation-friendly top speed of 25 km/h — the right balance of power and legality for an adult e-bike in Europe.
• Long-Range Removable Battery – 48V 12.5Ah (600Wh) – Ride 35–40 km in pure electric mode and up to 50–80 km in pedal-assist on this long range electric bike. The removable battery charges conveniently at home or the office with the included EU round-plug charger (100–240V, 2A).
• All-Terrain 20×4.0" Fat Tires with Hydraulic Disc Brakes – Premium Chaoyang fat tires and high-precision hydraulic disc brakes give this fat tire electric bike maximum grip, shock absorption and stopping power on city streets, gravel and wet roads.
• Lightweight Foldable Aluminum Frame (28.3 kg) – A durable yet lightweight aluminum alloy frame folds down in seconds — easy storage in car trunks, apartments or on the train. Truly a portable e-bike built for modern urban living.
• LCD Display & Commuter-Ready Design – A bright LCD speedometer tracks speed, battery level and distance, complemented by an integrated front light and a heavy-duty rear cargo rack — everything a daily commuter e-bike needs, out of the box.

Technical Specifications

The Everyday Electric Bike for City & Beyond

The SUNNIGOO B1 is the folding electric bike designed around real daily life. Whether it's the morning commute, the school run, or a grocery trip through town, this electric bicycle replaces the car for short and mid-distance trips. With a 48V battery, a 250W motor and a practical rear cargo rack, the B1 turns everyday errands into effortless rides — no driving licence, no parking fees, no traffic stress.

20×4.0" Fat Tires: Confidence on Every Surface

Wide 4.0-inch Chaoyang fat tires are the heart of this all-terrain electric bike. On wet cobblestones, gravel paths, forest tracks or winter roads, the large contact patch keeps you stable and comfortable, while the hydraulic disc brakes provide immediate, reliable stopping power. This fat tire e-bike is equally at home on asphalt and off-road — one bike, no limits.

Folds in Seconds: Made for Modern Living

Space is precious in European cities, and the SUNNIGOO B1 respects that. The aluminum alloy frame folds down quickly and compactly, so you can store this portable e-bike under a desk, in a hallway closet, or in the boot of a car. It is also an ideal foldable electric bicycle for mixed commutes — ride to the station, fold, and board the train or bus.

Long-Range Battery: Ride Further, Worry Less

The removable 48V 12.5Ah (600Wh) battery delivers up to 80 km in pedal-assist mode — enough for several days of commuting on a single charge. And because the battery is removable, you can charge it indoors at home or at the office with the included EU charger. For riders who compare e-bike range before buying, the B1's 35–40 km (electric) and 50–80 km (pedal-assist) figures speak for themselves.

EU-Compliant, Ready to Ride

As a 250W e-bike with a 25 km/h top speed, the SUNNIGOO B1 is designed in line with EU regulations for standard electric bicycles — no registration, no licence in most member states (always check local rules). It ships in 85% SKD packaging with the front wheel unassembled, so delivery is fast and damage-free, and assembly takes minutes.

Who Is the SUNNIGOO B1 For?

The B1 is for adults who want a reliable, good-looking electric bicycle without overpaying: daily commuters, weekend explorers, seniors who want a stable ride, and anyone who wants to leave the car behind. With a net weight of just 28.3 kg, it is one of the more practical folding e-bikes in its class.

Every SUNNIGOO B1 is built with premium components — Shimano drivetrain, Chaoyang tires, hydraulic disc brakes and a corrosion-resistant aluminum frame — because a folding electric bike should last for years, not seasons. Backed by SUNNIGOO's European-focused support and fast EU shipping, the B1 is the smart, stylish way to make every ride easier. Order yours today and feel the difference on your first commute.

Frequently Asked Questions

Is the SUNNIGOO B1 legal on European roads?

The SUNNIGOO B1 is a 250W pedelec with a 25 km/h top speed, classifying it as a standard electric bicycle under EU Directive 2002/24/EC. In most EU member states—including France, Spain, Germany and Italy—it can be ridden on public roads without registration, licence or insurance. Always check local regulations, as helmet and lighting rules vary by country.

How fast is the SUNNIGOO B1?

The B1 reaches a governed top speed of 25 km/h (15.5 mph) in electric-assist mode, in line with EU e-bike regulations. The Shimano 7-speed drivetrain lets you pedal faster downhill or on flat sections, while the 250W motor provides smooth, continuous assistance up to the legal limit.

How far can the B1 go on a single charge?

In pure electric (throttle) mode, expect 35–40 km. In pedal-assist mode, range extends to 50–80 km depending on assistance level, terrain and rider weight. These figures are measured with a 75 kg rider on flat roads at 25°C without wind. Hilly routes, heavy loads or cold weather will reduce range.

What is the weight and max load of the B1?

The B1 weighs 28.3 kg net (35.4 kg gross with packaging) and folds down to fit in car boots and small storage spaces. The aluminum alloy frame supports a maximum rider weight of 120 kg, plus the rear cargo rack can carry additional bags or groceries for daily commuting.

How long does it take to charge the battery?

The removable 48V 12.5Ah (600Wh) battery charges from empty to full in approximately 5–6 hours using the included EU round-plug charger (100–240V, 2A). Because the battery is removable, you can charge it at home, in the office or anywhere with a standard wall outlet—no special installation required.

What's in the box?

Your B1 arrives in 85% SKD packaging (front wheel unassembled) with: the folding aluminum frame with rear-mounted motor, 48V 12.5Ah removable battery, EU charger, LCD display with control panel, front LED light, rear cargo rack, Chaoyang 20×4.0" fat tire (front wheel separate), hydraulic disc brake system, assembly tools and a printed user manual. Assembly takes 15–20 minutes.

Explore Related Models

Compare with other certified models in the SUNNIGOO lineup, all shipped from our EU warehouses:

• SUNNIGOO B4 (full-suspension folding e-bike) — full-suspension folding e-bike.
• SUNNIGOO B5 (20" urban fat e-bike, 600Wh) — urban fat-tire e-bike.
• SUNNIGOO C91 (1000W, 48V 20Ah fat-tire e-bike) — high-speed fat-tire e-bike.

The SUNNIGOO FINER M1 is a 27.5-inch city electric bike for adults with a rated 250W EU-compliant hub motor (42 N·m torque), a hidden 36V 13Ah removable battery delivering up to 120 km of pedal-assist range, and an aviation-grade aluminum frame rated for 120 kg. Certified to EN 15194, it ships from our France warehouse in 3–5 working days.

How Fast Is the SUNNIGOO FINER M1?

The FINER M1 is powered by a rated 250W brushless rear hub motor delivering 42 N·m of torque. As a fully EU-compliant pedelec, it provides electric assistance up to 25 km/h on public roads — the legal threshold in every EU member state. No license, registration, or insurance is required. The motor engages only when you pedal, giving a natural, bicycle-like ride that flattens hills and extends your commute without turning it into a motorcycle.

How Far Can the FINER M1 Go on a Single Charge?

The 36V 13Ah (468 Wh) lithium-ion battery is hidden inside the frame and delivers up to 120 km on assist level 1, or approximately 50 km on assist level 3. That is enough for a full week of short city commutes on a single charge. The battery is removable and lockable — detach it in seconds for indoor charging at home or at the office. Range is measured with a 75 kg rider on flat terrain, no wind, at 25°C; actual range varies with rider weight, hills, temperature and assist level.

Is the FINER M1 Legal on European Roads?

Yes. The M1 meets EN 15194 — the European standard for electrically power assisted cycles (EPAC). Its 250W motor, 25 km/h maximum assisted speed, and pedal-first activation comply with regulations in France, Spain, Germany, Italy, the Netherlands, Poland and all other EU markets. You can ride it on cycle paths and public roads exactly like a standard bicycle. No license, no number plate, no insurance required.

What Is the Weight and Max Load?

The M1 weighs 25 kg thanks to its aviation-grade aluminum alloy frame — light enough to carry up a flight of stairs, yet rugged enough for daily commuting. The frame is rated for a maximum payload of 120 kg (rider plus cargo). The adjustable seat accommodates riders from 155 to 185 cm tall, and the upright, ergonomic riding position keeps longer commutes comfortable. The bike is non-folding, which keeps the frame stiffer and lighter than folding e-bikes in the same class.

How Long Does It Take to Charge?

The 36V 13Ah battery reaches full charge in 5–6 hours using the included EU-standard smart charger. Plug it in after your evening commute and it is ready the next morning. The charger includes over-current, over-voltage and temperature protection to safeguard the battery across its 500–800 charge cycles — typically 3–5 years of daily use.

What's in the Box?

The M1 ships 90% pre-assembled from our France warehouse. In the box you receive: the e-bike frame with motor and battery pre-installed, front wheel, handlebar and stem, charger ×1, pedals ×2 (left and right), hex wrench set, open wrenches ×2, lubricating oil ×1, and the user manual. Assembly takes about 15 minutes: attach the front wheel, insert the handlebar stem, screw in the pedals, adjust the seat height, and ride.

Where Can I Get Spare Parts and Service?

Batteries, chargers, brake pads, tyres, chains, and display units are stocked in our EU warehouse and ship within 3–5 working days. Our support team is reachable at service@sunnigoo.com for warranty claims, technical questions and parts orders. The M1 carries a 2-year warranty on the frame and motor, and a 1-year warranty on the battery. The Shimano 7-speed drivetrain uses standard bicycle components available at any bike shop in Europe.

Technical Specifications

*Range measured with a 75 kg rider on flat terrain, no wind, at 25°C. Actual range varies with rider weight, terrain, temperature and assist level.

Explore Related Models

Compare with other certified e-bikes in the SUNNIGOO lineup, all shipped from our EU warehouses:

• FINER M2 (27.5" lightweight city e-bike) — lighter variant, same 120 km range.
• FINER M2 PLUS (torque sensor, 140 km range) — premium with torque sensor and larger battery.
• SUNNIGOO B1 (folding fat-tire e-bike) — 20" fat tyres, folds for storage.
• SUNNIGOO C91 (1000W fat-tire e-bike) — high-power off-road e-bike for mixed terrain.

SUNNIGOO · Ride Anywhere, Live Happier — questions before you order? Reach us at service@sunnigoo.com.

SUNNIGOO M2 Electric City Bike – 27.5" Lightweight Urban E-Bike with 36V 13Ah Removable Battery

The SUNNIGOO M2 electric city bike proves that a premium urban e-bike doesn't need a premium price tag. Sharing the same platform as our flagship city commuter — 250W EU-compliant motor, 36V 13Ah hidden battery, 27.5" wheels and Shimano 7-speed — the M2 delivers flagship comfort and up to 120 km of range in a fresh, modern look.

Key Features

• Full Flagship Spec at a Smarter Price – The M2 shares its platform with our top city model: 250W EU-compliant motor (42 N·m), legal 25 km/h top speed and natural pedal assistance — an everyday electric bike for adults that needs no license and breaks no rules.
• 468Wh Hidden Removable Battery – Up to 120 km – The battery tucks inside the aluminum frame, safe from rain and theft, and slides out for easy indoor charging. From 50 km at full assist to 120 km at level 1, it covers a full week of commuting on a single charge.
• Comfort-First Geometry with Suspension Fork – 27.5×2.1" anti-puncture tires and a suspension front fork smooth out cobblestones, tram rails and speed bumps, while the upright riding position keeps your back relaxed on longer rides.
• Lightweight 25 kg Aluminum Frame, 120 kg Payload – Easy to lift onto a bike rack or carry upstairs, yet rated for riders from 155 to 185 cm and up to 120 kg — a genuinely practical lightweight electric bike for daily urban life.
• Sky Blue or Black + 3–5 Day EU Delivery – Pick your look, then ride it within the week: the M2 ships from our French warehouse, 90% pre-assembled, with color LCD display, automatic front light and front/rear disc brakes as standard.

Technical Specifications

Flagship Comfort Without the Flagship Price

The SUNNIGOO M2 is built on the exact same platform as our top-tier city model — same motor, same battery, same Shimano drivetrain and suspension fork. Choosing the M2 isn't choosing "less bike"; it's choosing a different color and keeping €4 in your pocket. For commuters who want a reliable electric city bike that simply works, this is it.

One Charge, One Week of Commutes

A 468Wh hidden battery means the M2 isn't a "just around the block" e-bike. Ride at full assist for 50 km, or drop to level 1 and stretch to 120 km — enough for five round-trip commutes before the charger comes out. And because the battery is removable, you can top it up at your desk while the bike waits downstairs.

Made for European Cities, Stored in Europe

The M2 rides like a proper bicycle thanks to its 27.5" wheels and pedal-assist-only system — and it ships from our French warehouse, arriving in 3–5 working days, 90% assembled. Attach the pedals, set the saddle height, and your new daily commuter bike is on the road before the weekend.

Smart spec, fresh color, fast delivery. Order the SUNNIGOO M2 electric city bike today — Sky Blue or Black, in stock in France.

Frequently Asked Questions

Is the FINER M2 road-legal in Germany?

Yes, the FINER M2 is fully compliant with German StVZO regulations. Its 250W motor and pedal-assist system ensure it is classified as a standard bicycle, allowing you to ride legally everywhere.

How long does the FINER M2 battery last?

The high-capacity 36V 13Ah battery is designed for longevity, typically lasting between 500 and 800 full charge cycles before experiencing a noticeable reduction in its maximum overall capacity and performance.

What is the real-world range of the FINER M2?

While the maximum range is 120km, real-world performance varies based on rider weight, terrain, and assist levels. Most users comfortably achieve 80-100km on a single charge under typical daily commuting conditions.

Does the FINER M2 come with a charger?

Yes, every FINER M2 purchase includes a dedicated EU-standard smart charger. It is designed to safely charge your battery from empty to full in approximately 5 to 6 hours for convenience.

What warranty covers the FINER M2?

The FINER M2 includes a comprehensive two-year warranty covering the frame, motor, and battery against manufacturing defects. Our dedicated EU support team ensures quick assistance for all your maintenance and service needs.

Explore Related Models

Compare with other certified models in the SUNNIGOO lineup, all shipped from our EU warehouses:

• FINER M1 (27.5" city e-bike, 250W EU motor) — lightweight city e-bike.
• FINER M2 PLUS (torque sensor, 140km range) — torque-sensor premium e-bike.
• SUNNIGOO C91 (1000W, 48V 20Ah fat-tire e-bike) — high-speed fat-tire e-bike.

SUNNIGOO M2 PLUS Torque Sensor Electric Bike – Premium 27.5" City E-Bike with 36V 16.5Ah Battery & 140 km Range

The SUNNIGOO M2 PLUS torque sensor electric bike is our flagship city commuter. A torque sensor measures how hard you pedal and matches the power instantly — the most natural electric-assist ride available. Add a bigger 36V 16.5Ah (594Wh) battery with up to 140 km of range, and the M2 PLUS turns every ride into first class.

Key Features

• Torque Sensor Pedal Assist – The Natural Ride – Unlike basic speed sensors, the M2 PLUS torque sensor reads your pedaling force continuously, delivering power the instant you push. Hill starts feel effortless, acceleration feels seamless — this is the premium e-bike ride that torque-sensor bikes are famous for.
• Extra-Long 36V 16.5Ah Battery (594Wh) – Up to 140 km – The flagship hidden battery extends pedal-assist range to 140 km on level 1 (80 km on level 2, 50 km on level 3). Removable, lockable and weather-sealed inside the frame — charge it anywhere, ride for days.
• 250W EU-Compliant Motor, 42 N·m of Torque – Legal 25 km/h assistance with serious pulling power: climb slopes up to 20° while the torque sensor keeps delivery smooth and controlled. A fully EU-compliant electric bicycle — no license, no registration.
• 27.5×2.1" Tires, Suspension Fork & Dual Disc Brakes – Big wheels, anti-puncture rubber and a suspension fork soak up rough city streets, while front and rear disc brakes bring you to a confident stop in any weather.
• Flagship Spec, Silver Grey or Black, Fast EU Delivery – Shimano 7-speed drivetrain, color LCD display, automatic front light, 120 kg payload and an aluminum frame for riders 155–185 cm. Ships from our French warehouse in 3–5 days, 90% pre-assembled.

Technical Specifications

What Is a Torque Sensor – and Why It Matters

Most e-bikes use a speed sensor: push the pedals, and the motor switches on at a fixed rate. The M2 PLUS torque sensor works differently — it measures how hard you're actually pedaling and delivers exactly proportional power, instantly. Start from a red light on a hill and you'll feel it: firm push, firm assist, no lag, no lurch. Riders who try a torque-sensor e-bike rarely go back. It's the difference between "riding a bike with a motor" and "riding a bike that makes you stronger".

594Wh Flagship Battery: Commute All Week

The 36V 16.5Ah battery is the largest in our city range — up to 140 km of pedal assist on level 1, or 80 km at the medium level. Hidden inside the frame where rain and thieves can't reach it, yet removable in seconds for indoor charging. Whether your commute is 10 km or 40, the M2 PLUS ends the week with charge to spare.

Premium Details, Everywhere

Shimano 7-speed shifting, a crisp color LCD, an automatic front light, dual disc brakes, a suspension fork and a 120 kg-rated aluminum frame — every component on the M2 PLUS matches its flagship mission. And like every SUNNIGOO city bike, it ships from our French warehouse: 3–5 working days to your door, 90% pre-assembled and ready to ride.

The flagship you can feel in the first pedal stroke. Order the SUNNIGOO M2 PLUS torque sensor electric bike today — Silver Grey or Black, in stock in France.

Frequently Asked Questions

Is the FINER M2 PLUS road-legal in Germany?

Yes, the FINER M2 PLUS is designed to comply with German StVZO regulations, featuring a 250W motor and pedal-assist functionality, making it fully road-legal for use on public cycling paths.

How long does the FINER M2 PLUS battery last?

The high-capacity 48V 15Ah battery is built for longevity, typically lasting between 500 to 800 full charge cycles before experiencing a noticeable reduction in its original maximum storage capacity.

What is the real-world range of the FINER M2 PLUS?

While the bike offers an impressive maximum range of 140km under optimal conditions, real-world performance varies based on rider weight, terrain, tire pressure, and the chosen level of pedal assistance.

Does the FINER M2 PLUS come with a charger?

Yes, every FINER M2 PLUS purchase includes a dedicated smart charger compatible with EU power outlets, designed to safely and efficiently recharge your battery from empty to full within hours.

What warranty covers the FINER M2 PLUS?

We provide a comprehensive two-year warranty covering the frame, motor, and battery against manufacturing defects, ensuring peace of mind and reliable support for your electric bike throughout your ownership journey.

Explore Related Models

Compare with other certified models in the SUNNIGOO lineup, all shipped from our EU warehouses:

• FINER M1 (27.5" city e-bike, 250W EU motor) — lightweight city e-bike.
• FINER M2 (27.5" lightweight city e-bike) — lightweight urban e-bike.
• SUNNIGOO C91 (1000W, 48V 20Ah fat-tire e-bike) — high-speed fat-tire e-bike.