Gub Cycling Rear Derailleur Guide Wheel Bicycle Rear Mech Derailleur Pulley Wheel Aluminum Alloy 11t

Specifications: Brand: GUB Material: Aluminum alloy Color: Black,Blue,Red,Gold,Titanium Net weight: 11g Type: 11T Size: Show as the pictures Features: Support for 7/8/9/10 Speed. Shaft core diameter of 6mm, can be used to convert units to be compatible with 4mm and 5mm screws of the guide wheel. Guide wheel selection principles: try to use the same size as original guide wheel,if not the same, you can choose small size than the original guide,but can not use large. Package includes: 1 x Bicycle Derailleur