Feature(may vary by option.)
●it is cnc machined by AL 7075-T6 round rod ,finished machined by diamond cutter,with diamond metal texture and good abrasion resistance index , it adopts imported Japanese steel bearing,rotating without resistance ,it greatly decreased frictional resistance,and increased cycling efficiency, the design inreased bike derailleur shifting speed ,it causes no noice when shifting speed k and prevent bike chain falling .●Acrew axis:Fit for 4/5 MM roller screw axis●Diameter:50mm(12T),58mm (14T)●Bearing:ceramic bearing ,stainless steel shell , more durable●Package:Narrow-Wide teeth Rear Derailleur pully *1 pcs & Copper Adapter * 2 pcs(4mm,5mm)[12t Red]
![](https://m.media-amazon.com/images/I/41rZ4UdKUdL._AC_.jpg)
[12t Black]
![](https://m.media-amazon.com/images/I/41Ktdx5vU9L._AC_.jpg)
[12t Gold]
![](https://m.media-amazon.com/images/I/41VS5t9q-lL._AC_.jpg)
[14t Green]
![](https://m.media-amazon.com/images/I/51LELsJtEUL._AC_.jpg)
[14t Black]
![](https://m.media-amazon.com/images/I/41rZajnFJVL._AC_.jpg)
[12t Green]
![](https://m.media-amazon.com/images/I/4143ta+PquL._AC_.jpg)
[14t Blue]
![](https://m.media-amazon.com/images/I/41IkCfP+HJL._AC_.jpg)
[14t Gold]
![](https://m.media-amazon.com/images/I/51HECFzhfZL._AC_.jpg)
[14t Red]
Description
Feature:
it is cnc machined by AL 7075-T6 round rod ,finished machined by diamond cutter,with diamond metal texture and good abrasion resistance index , it adopts imported Japanese steel bearing,rotating without resistance ,it greatly decreased frictional resistance,and increased cycling efficiency, the design inreased bike derailleur shifting speed ,it causes no noice when shifting speed k and prevent bike chain falling .
Size:12T,14T
Acrew axis:Fit for 4/5 MM roller screw axis
Body: 7075 aluminum alloy
Diameter:50mm(12T),58mm (14T)
Bearing:ceramic bearing ,stainless steel shell , more durable
Copper Bushing , Resistant
Color: red black blue gold Green
Apply for most of rear derailleur on the market
Package:
Narrow-Wide teeth Rear Derailleur pully *1 pcs
Copper Adapter * 2 pcs(4mm,5mm)