Minimalism meets maximum range.
The Uni4 looks like it teleported from 2030 with its three-tube frame and hidden everything. This is what happens when engineers obsess over every detail while refusing to compromise on performance or aesthetics.
HonBike didn’t just build another ebike – they reimagined what one should look like. The unique three-tube frame eliminates traditional welding points, creating a structure that’s both stronger and more elegant than conventional designs. Using aircraft-grade 7000 series aluminum instead of the standard 6000 series means this frame is roughly 80% stronger while maintaining impressive lightness at 20.2kg.
The 432Wh battery delivers an impressive 100km range while staying completely hidden within the frame. No external battery pack disrupting the lines, no theft concerns, just clean aesthetics with serious performance. The 4-4.5 hour charging time means overnight charging gets you sorted for multi-day adventures.
What really impresses is the attention to detail throughout. The magnesium die-cast wheels aren’t just for looks – they’re maintenance-free and provide superior shock absorption compared to traditional spoked wheels. The Gates carbon belt drive means thousands of miles without chain maintenance, while the IPX6 waterproofing lets you ride through anything and hose it down afterward.
The motor system deserves special mention. The 1:13 gear reduction in the rear hub creates incredibly smooth power delivery with 45Nm of torque, while the built-in reduction means less battery drain and quicker starts from stops. Three riding modes (Eco, City, Sport) let you balance range with performance based on your mood and needs.
Key Specs
- Weight: 20.2kg
- Range: Up to 100km (62 miles)
- Top Speed: 25km/h (15.5mph)
- Motor: 250W rear hub with 1:13 gear reduction (45Nm torque)
- Battery: 432Wh (36V 12Ah) integrated lithium-ion
- Rider Height: 160-190cm (5’3″ – 6’3″)
- Frame: Aircraft-grade 7000 series aluminum
- Charging: 4-4.5 hours
- Waterproofing: IPX6 rating
- Max Load: 120kg including luggage
- Wheels: Magnesium die-cast, maintenance-free
- Drivetrain: Gates Carbon Belt Drive
What Sets It Apart
Aircraft Aluminum Frame – 7000 series is 80% stronger than standard bike aluminum while maintaining lightness and elegance.
Magnesium Die-Cast Wheels – Maintenance-free, shock-absorbing, automotive-grade construction that eliminates spoke tension issues.
IPX6 Waterproof – Ride through anything, hose it down after. No electrical concerns in any weather.
HonBike Uni4 Review: The Final Word
For riders who appreciate invisible technology and maximum efficiency. It’s the Tesla of ebikes – if Tesla made bikes. The Uni4 proves that advanced engineering and beautiful design aren’t mutually exclusive, delivering both in a package that makes every ride feel special.