Rueda guía de bicicleta 10T-17T, rueda Jockey, rodamiento de cerámica, rodamiento de cambio trasero de bicicleta, adaptador de eje de rodillo guía

Colour:Black\Red\Blue\Green
Material quality:aluminium alloy
Size:10T/11T/12T/13T/14T/15T/16T/17T
Parts:4/5mm(0.16/0.20in) variable diameter sleeve
Packing:OPP bag
Package: 1 set Bearing Feature:
1. High strength aluminum alloy, CNC processing, enhance the durable strength;
2. Deepen the tooth mark: can effectively reduce the situation of chain off, more clear speed change, more stable on the chain.

Axis: Stainless Steel Shell , Ceramic Bearing Ball
Application: compatible with most Rear Derailleur on the market