T8F Chain & Sprocket Upgrade Kit

The T8F Sprocket Kit is a high-quality upgrade designed for Razor electric bikes, specifically compatible with the RSF650, MX500, MX650, SX500, and any other bike featuring an MY1020 motor/early kr5v motors with a 10mm shaft. This sprocket kit enhances your bike's performance by offering improved torque and speed control, ensuring smoother rides and better acceleration. The kit includes durable sprockets, a chain, and necessary hardware, making it an easy and effective way to upgrade your bike's drivetrain system. Perfect for riders looking to enhance their off-road experience or add a more customizable touch to their electric bike setup.

It’s also ideal for those looking for a reliable solution for replacing worn-out parts, while maintaining the overall efficiency of the motor system.

Fits MX500/650, SX500, RSF650

Fits MY1020

Fits early KR5V motors with 10mm sprocket bore

Compatible with stock chain tensioner

Includes: 64 tooth, 11 tooth, 12 tooth, 13 tooth sprockets, 1 meter of chain, & 2 master links

MY1020 speeds:

9/64 ratio = 36mph (72v my1020 & 180lb rider)

11/64 ratio = 41mph (72v MY1020 & 180lb rider)

13/64 ratio = 48mph (72v MY1020 & 180lb rider)

KR5V speeds:

13/64 ratio = 58mph (72v MY1020 & 180lb rider)

Motor sprocket nut is LH thread.