Bicycle Rear Derailleur Pulley Jockey Wheel 12T For-SRAM XX1 XO1 X1 GX 11Speed. Model: 12T. Narrow wide Jockey Wheel. 2 x Jockey Wheel.

Brand: Unbranded
Colour: Black
Material: Plastic
Number of Items: 2
Number of Speeds: 11 Speed
Part Type: Rear Derailleur