chain sprocket kit

SFR supply all kind of chain sprocket kits.

Sprocket material is of 45# steel with heat treatent, its running life is more than 25000kms.

the kits could choose SFR normal chains, SFR solid bush chains, or oring chains.

SFR normail chain material is 45Mn, running life is more than 20000kms

SFR solid bush chain material is 45Mn, running life is more than 25000kms

SFR Oring chain material is 50CrVA, running life is more than 50000kms