Drivetrain

Upgrade or Replace Your E-Bike Drivetrain

The drivetrain takes more abuse than almost any other part of an electric bike. Higher torque, heavier frames, and longer distances mean chains stretch faster and sprockets wear sooner than on traditional bicycles. Replacing components at the first sign of wear, such as skipping gears, chain slap, or rough pedaling, protects the rest of your drivetrain and keeps expensive parts like motors running efficiently.

For electric dirt bike riders, gearing changes are one of the most popular performance upgrades. Swapping to a larger rear sprocket, like a 58 or 60 tooth option, improves low-end acceleration and hill climbing, while a smaller sprocket favours top speed. Pair a new sprocket with a fresh 520 chain and a chain guide kit to keep everything aligned and quiet on rough terrain. Riders building out a full performance setup can also browse E-Moto Upgrades and EBMX components for matching parts.

Complete the Job with the Right Supporting Parts

A drivetrain refresh is the perfect time to inspect the rest of your ride. Worn brakes undo the benefit of better acceleration, and a proper chain tool or torque wrench from our tools collection makes installation faster and safer. If you're not sure which chain pitch, cassette speed, or bottom bracket size fits your model, use the compatibility filter on this page or contact the Epic Cycles team for help matching parts to your bike.