TUNO DK400 Pro
TUNO DK400 Pro
What is the TUNO DK400 Pro?
Short answer: The TUNO DK400 Pro is a 20-inch fat-tire electric bike powered by a 48V 500W spoke-hub motor and a 48V 18.2Ah battery, delivering 45-55 km of range at the EU-legal 25 km/h - built as a sturdy, all-terrain daily rider with front and rear disc brakes and a suspension fork.
Key features
- 48V 500W spoke-hub motor - reliable power for city streets and trails
- 48V 18.2Ah high-capacity battery: 45-55 km per charge
- 20-inch fat tires for stability on sand, snow, gravel and rain
- Front and rear disc brakes + suspension fork for control on rough surfaces
- CE / RoHS, EN15194 pedal-assist - no license needed in the EU
Best for: riders who want one e-bike for everything - commuting on weekdays and beach, trail or snow riding on weekends.
TUNO DK400 Pro specifications
| Motor | 48V 500W spoke hub motor |
|---|---|
| Battery | 48V 18.2Ah |
| Top speed | 25 km/h (EU street-legal limit) |
| Range | 45-55 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 Pro
What range does the TUNO DK400 Pro get on one charge?
The DK400 Pro covers 45-55 km per charge with its 48V 18.2Ah battery, depending on rider weight, terrain and assist level.
Is the DK400 Pro good for off-road riding?
Yes. Its 20-inch fat tires, suspension fork and front/rear disc brakes are designed for gravel, sand, grass and light trails, while staying 25 km/h EU-legal on public roads.
What is the difference between DK400 Pro and DK400 Max?
The DK400 Max upgrades to a dual-motor setup (350W front + 500W rear) and a larger 48V 20Ah battery for 55-70 km range; the Pro uses a single 500W motor with a 48V 18.2Ah battery.
Do I need a license to ride the DK400 Pro in Europe?
No. As an EN15194 pedal-assist e-bike limited to 25 km/h, it is legally a bicycle in the EU.
How long does charging take?
A full charge takes 4-6 hours with the included charger.
Warranty, shipping and compliance
Every TUNO DK400 Pro 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 Pro. Category: fat-tire electric bike.