TUNO DK400 Max
TUNO DK400 Max
What is the TUNO DK400 Max?
Short answer: The TUNO DK400 Max is an all-wheel-drive fat-tire electric bike that combines a 350W front motor with a 500W rear motor, a 48V 20Ah battery and a 55-70 km range - giving it the traction of two driven wheels while remaining a 25 km/h EN15194-compliant e-bike in the EU.
Key features
- Dual-motor AWD: 350W front + 500W rear for true all-wheel-drive traction
- 48V 20Ah battery, 55-70 km range - the longest in the DK400 line
- Dual-motor torque climbs steep hills and pulls through mud or loose gravel
- Front and rear disc brakes + suspension fork matched to AWD power
- CE / RoHS, EN15194 pedal-assist - EU street-legal with no license
Best for: riders in hilly or loose-terrain regions - forest trails, farms, beaches - who want AWD grip without giving up EU e-bike legality.
TUNO DK400 Max specifications
| Motor | Dual motor: 48V 350W front + 500W rear (AWD) |
|---|---|
| Battery | 48V 20Ah |
| Top speed | 25 km/h (EU street-legal limit) |
| Range | 55-70 km |
| Brakes & suspension | Front and rear disc brakes + suspension fork |
| Tyres | 20-inch fat tires |
| Charging time | 4-6 hours |
| Certification | CE / RoHS, EN15194 pedal-assist mode |
Frequently asked questions about the TUNO DK400 Max
What makes the TUNO DK400 Max different from other fat-tire e-bikes?
The DK400 Max drives both wheels: a 350W front motor plus a 500W rear motor provide all-wheel-drive traction that single-motor e-bikes cannot match on loose or steep terrain.
How far can the DK400 Max ride on one charge?
With its 48V 20Ah battery, the DK400 Max covers 55-70 km per charge, the longest range in the DK400 family.
Is the DK400 Max still street-legal in the EU?
Yes. Both motors are managed through EN15194-compliant pedal-assist limited to 25 km/h, so the DK400 Max remains legally a bicycle in the EU.
Is AWD worth it on an e-bike?
For sand, snow, mud or steep gravel, yes - both wheels deliver torque, which reduces wheelspin and improves climbing compared with a single rear motor.
How long does the battery take to charge?
A full charge takes 4-6 hours with the included charger.
Warranty, shipping and compliance
Every TUNO DK400 Max includes a 12-month warranty on frame, motor and battery, ships DDP (duties paid, door delivery) from EU stock in 3-7 days, and is backed by EU-based after-sales support with spare parts availability. Compliance: CE / RoHS, EN15194 pedal-assist mode.
Brand: TUNO. Model: DK400 Max. Category: dual-motor fat-tire electric bike.