Pulley Wheel Ceramics Aluminum Zinc Zinc Alloy Transmission Guide Wheel Rear Derailleur Guide Roller Bearing

Label:Yes Material: aluminium Zinc Zinc Zinc Zinc Alloy Specification: applicable to 4/5/6MM shaft guide screw Optional type: 14T 15T 16T Package Contents: 1 pcs Bike Rear Derailleur Pulley Color: As Picture Item type: Bike Rear Derailleur Pulley

Size: 14T diameter is about 55mm, 15T diameter is about 57mm,16T diameter is about 63mm