RK Open chain kit + crown sprocket without seal 420MXZ 7930398

1) Made for the professional Supermotard and Motocross rider.



2) The lightweight, high-performance racing chain is the result

of innovative metal alloys and the latest manufacturing technology.



3.) MXZ Chains - chrome alloy steel construction with seamless rollers and bushings,

and specially hardened oversized bolts for greater strength.



4.) All designs are heat treated using RK's exclusive HIT (Heat Induction Transfer) process.



5.) 420 MXZ high-performance racing chains are among the strongest in their class

and they are excellent value for money compared to all the MX competition chains in the world.