Highest quality steel #428 sprockets made by RK Japan (May be branded RK / XAM / AFAM / NKP). NOTE: For 18t, DID & Regina chains are too wide to fit in the machined groove in the NKP gear. We recommend the Panther #428 Chain for this one size.
Highest quality steel #428 sprockets made by RK Japan (May be branded RK / XAM / AFAM / NKP). NOTE: For 18t, DID & Regina chains are too wide to fit in the machined groove in the NKP gear. We recommend the Panther #428 Chain for this one size.