1pcs 12T Narrow wide Jockey Wheel bike Rear Derailleur Pulley for Shimano Sram


 


 

Note: this item is resin made.It is 12T pulley ,it included 1pcs.


 


 

Features:


Thickness:8mm diameter:50.1mm


universal 4/5/6mm in aperture


Weight:10g/pcs


Package include:1pcs 12T