Full moto style axle block system enables precise chain tension adjustment for optimal performance
2-3 inch stretch extension matches 630mm fork kit for balanced and stable ride
Eliminates chain noise and bounce for a smoother, quieter experience
Compatible with stock swing arms for easy installation
Durable 6061 billet aluminum construction ensures longevity
Summarized by Shop
Get ready for a game-changing upgrade! We're introducing a full moto style axle block system and axle to our MX and SX bolt-on extension. This enhancement will not only allow you to adjust your chain tension with ease and precision, but it will also solve the common problems of chains falling, bouncing around, and the noise from the chain
Material
6061 billet aluminum
Extension Length
2-3 inches
Axle
12mm with axle blocks
Compatibility
Razor MX500, MX650, SX500
Manufacturing Process
CNC
Drilling
Your stock swing arm must be drilled
Summarized by Shop
4.9
66 ratings
5
4
3
2
1
Easy fit,Great quality would buy again,don’t be cheap and get a great drill bit,unlike me who had a drill bit that had to friction melt through.
B
Brian · June 5, 2026
Made the scramblers fit and made razor way cooler and more stable