Bicycle 12T 14T Narrow wide Jockey Wheel bike Rear Derailleur Pulley for Sram Shimano 

Note: this item is resin made. It is narrow wide pulley, it is DIY parts, please make sure the diameter of Jockey wheel and your application before you place the order. Any question, please contact us ,thanks!

Features:

Thickness: 8mm

Diameter: 50.1mm(12T)

Tooth: 12T, 14T for selection.

Universal 4/6, 5/6mm in aperture

Weight: 11g/pcs(12T)