The 20x4.0 rear wheel with a 250W, 80 Nm Viketory motor is a complete solution designed for refurbishing or replacing a rear wheel on an electric bike, by combining a 20-inch fat bike 4.0 rim with an integrated rear-wheel motor. It is designed to deliver efficient traction and responsive assistance, with a rated torque of 80 Nm to support starts and acceleration, particularly in urban settings and on challenging terrain.
Designed for e-bikes equipped with a rear hub motor, this motorized wheel helps restore smooth power delivery, improved traction, and stable handling thanks to its wide 20x4.0 format. It is intended for users seeking a reliable replacement part suited to e-bike riding focused on mobility, comfort, and control.
To ensure proper installation and avoid any errors, we recommend comparing the wheel size, motor type, and original configuration of your bike before placing an order.
Scroll down to view the detailed technical specifications at the bottom of the page ↓
Warranty: 2 years
Product Overview
The Viketory COMMANDO/NAVY 20x4.0 rear rim with a 250W, 80Nm motor is a motorized rear wheel assembly designed to refurbish or replace an original wheel on an e-bike equipped with wide tires. By combining a 20x4.0 rear rim with a 250W hub motor, this replacement part ensures smooth operation and a simpler installation process than replacing individual components separately.
Benefits for the User
This complete assembly restores functional electric propulsion to the rear wheel with a rated torque of 80 Nm, which is useful for more responsive acceleration and more effective assistance at low speeds. The 20x4.0 size is suitable for “fat” configurations and ensures better stability for the wide tire, making it ideal for compact e-bikes that require a sturdy and stable wheel.
Technical Specifications
Rear wheel assembly comprising a 20x4.0 rim and a hub-integrated motor. Motor power: 250W. Rated maximum torque: 80Nm. Mounting: rear. Brand: Viketory. Model: COMMANDO/NAVY.
Recommended Uses
Recommended part for replacing a motorized rear wheel on an e-bike with a 20x4.0 configuration, particularly when repairs require replacing both the rim and the motor at the same time. Suitable for uses requiring responsive assistance, particularly on routes where frequent starts and accelerations occur.
Compatibility
Listed compatibility: COMMANDO and NAVY models.
Expert Advice
Before purchasing, check the following on your e-bike: the exact tire size (20x4.0), the type and dimensions of the rear axle, the frame wheelbase, the brake standard, and the connection between the motor and the controller. If in doubt, compare the markings on your original wheel or motor, or have a shop verify compatibility: this is the best way to avoid mechanical or electrical incompatibility during replacement.