The Shimano EP8 pedal assist system installed on the e903TRN PRO delivers power up to 25 km/h.

The system installed on the e903TRN PRO has a 630 Wh battery installed entirely inside the frame. The Shimano EP8 motor delivers maximum torque of 85 Nm with maximum power of 250 W.

Yes, the e903TRN PRO is a pedal-assisted e-MTB: this means that if you do not pedal, the motor will not activate and will not assist pedalling.

Maintenance is quite limited and simple. The Shimano EP8 system requires no particular maintenance: wash your bike like a normal bike, lubricate the chain and check wear on the brake pads. However, Wilier Triestina recommends you have it checked regularly at an official reseller to avoid mechanical issues.

Contact your local Wilier Triestina dealer or Shimano service centre.

We recommend wiping it with a soft cloth and mild soap, then drying it completely before use. Do not use compressed air during washing.

Both the motor and the battery are water resistant, so you can use it in muddy or wet conditions.

29" wheels with 110x15 front boost axle and 148x12 rear boost axle.

You will need special permission to take your e903TRN PRO on a plane. You should contact your airline before booking your ticket.