Bike Cycling Rear Mech Derailleur Pulley Wheel Aluminum Alloy Mountain Bicycle

Specifications:
Material: Aluminum alloy
Color: Blue， Gold， Red， BLack， Silver
Size: 4.3cm\/1.8!#!amp!*!quot;(dia)， thickness 8.5mm
Hole size: 5mm dia， radius 42mm
Weight: 9g

Features:
Anodised CNC machined bicycle jockey wheel with fully rubber sealed bearing for center bolt derailleurs
Firm and lightweight
Bearings: Upgraded RS bearing
Type: 11T
Fits for all the mountian bike.

Packing Includes:
1 x Bike 11 teeth guide wheel