COMPETITION CROSS SPIKE KIT MX239-X minimizing the chance of the

minimizing the chance of the socks sliding down so you can focus on your ride

it maintains incredible power transfer to the pedal

Please double check which version you have to ensure compatibility

the CX400 provides a stable and efficient foundation for competitive cycling

COMPETITION CROSS SPIKE KIT MX239-X minimizing the chance of theSpike kit includes: 4 round spikes 4 flat spikes 4 claw spikes 4 screws 1 wrench Compatible with: MX1C MX20G MX21G MX218 MX219 MX237 MX238 MX239 MX237 MX238 Supercross MX238 MX239 Gravel MX241 MX242 MX30G MX332 MX333 Not compatible with MX332 Supercross. Please use RACE SUPERCROSS SPIKE KIT.