yofastener logo
110BCD&130BCD Double Chain Crank Set Highway Bicycle 34T-50T 36T-52T Sprocket

110BCD&130BCD Double Chain Crank Set Highway Bicycle 34T-50T 36T-52T Sprocket

Applicable specifications: 110BCD&130BCD. 110BCD:34T/50T/36T/52T/39T/53T. 130BCD:39T/53T/42T/55T/46T/56T. --The width of the corresponding spur gear; The negative chain corresponding to the tooth is circular.