Aluminum Alloy 11T 13T Derailleur Roller Wheel for Mountain and Road Bikes

Aluminum Alloy 11T 13T Rear Derailleur Pulley for Improved Ride Experience

11T 13T Bicycle Derailleur Pulley Wheel Metal Guide Wheel for Mountain Bikes

Aluminum Rear Derailleur Pulley 11T CNC Guide Wheel for Smooth Bicycle Shifting

CNC Machined Aluminum Rear Derailleur Pulley 11T for Accurate Shifting

Aluminum Alloy Rear Derailleur Guide Wheel 11T13T for Bicycle 8 to 11 Speed

Mountian Bicycle Derailleur Pulley Wheel Steel Bearing 11T 13T Guide Wheel

Aluminum Alloy 11T 13T Rear Derailleur Pulley for Improved Ride Experience