Pulley Wheel

Stone Pulley Wheel Gear Guide Roller Jockey 10t 11t 13t 15t Bearing Road MTB Bike Bearings Rear Derailleur for X4 Shimano M370

Stone Bike Pulley Wheel Narrow Wide Tooth 10t 12t 14t 16t Bearing Road MTB Bike Rear Derailleur for Shimano For Sram