EUROPE — Electric mobility brand SUNNIGOO has officially announced the launch of its new urban electric bike, the B5. Engineered to bridge the gap between heavy-duty cargo utility and everyday commuter comfort, the B5 combines a robust 250W motor setup with a 20x4.0-inch fat tire chassis and comprehensive legal compliance under European standards.
Combining Practical Utility with All-Terrain Comfort
The SUNNIGOO B5 is built specifically for riders tackling multifaceted weekly routines—from daily commuting and grocery runs to weekend errands. To handle real-world utility, the electric bike comes fully equipped out of the box with a front basket, a 15 kg-rated aluminum rear rack, and full-length mudguards.
For ride quality over rough urban infrastructure, the B5 relies on a dual-comfort layer system: an absorbent front suspension fork designed to smooth out potholes, paired with wide 20x4.0-inch fat tires that easily track across broken asphalt, gravel, and wet cobbles.
Stopping power is managed by reliable front and rear hydraulic disc brakes, ensuring secure performance even when descending hills under a loaded 33 kg frame weight.
Power, Range, and Compliance
At the heart of the B5’s electronics is a removable key-locked 48V 12.5Ah (600Wh) lithium battery pack. The battery delivers an estimated 50 to 80 km of assisted riding per charge (with a full recharge taking approximately 6 hours) and can be easily unlocked and taken indoors for charging. Power is transmitted via a Shimano 7-speed gear system.
Crucially for European riders, the B5 is fully certified as an EPAC (Electrically Power Assisted Cycle) under EN 15194 regulations:
Motor & Speed: Features a continuous 250W motor whose pedal assistance automatically caps at 25 km/h.
Legal Status: Because it operates strictly via pedal assistance without a throttle, it evades moped classification. In the eyes of the law, it is categorized as an ordinary electric bike, requiring no license, no insurance, and no number plate to ride on public roads, cycle paths, and bus lanes.
Quick Assembly and Availability
Designed for immediate convenience, the SUNNIGOO B5 arrives 85% pre-assembled. Riders only need to attach the front wheel, pedals, saddle, and handlebars—a process that typically takes between 20 to 30 minutes before the bike is ready for the road.
Related topics:
- Which Electric Bicycle Has the Longest Range in SUNNIGOO?
- What the N5 350W Actually Offers
- How Does an Electric Bike Work: Detailed Guide by Sunnigoo
Recommended SUNNIGOO models
If this guide helped you size up what you need, these are the models we recommend most often for this topic:
- SUNNIGOO B5 Fat Tyre Electric Bike — shipped from our EU warehouse with warranty and parts support.
- SUNNIGOO N5 350W Folding Electric Scooter for Adults | 36V 7.5Ah, 30-35 km Range, 10" Pneumatic Tires — shipped from our EU warehouse with warranty and parts support.
- SUNNIGOO M1 250W Electric City Bike for Adults | 36V 13Ah, 27.5" Wheels, 7-Speed, 25 km/h — shipped from our EU warehouse with warranty and parts support.
Not sure which one fits your route or terrain? Contact our team for a recommendation based on your commute distance, rider weight and local rules.