Diameter:50mm (12T),55mm (14T)
Package:Narrow-Wide teeth Rear Derailleur pully *1 pcs,Copper Adapter * 2 pcs (4mm,5mm)
Net Weight: approx 14.9g
Color: red black blue gold Green
Material: 7075 aluminum alloy
Size:12T,14T
Product Name:Wheel Bicycle Rear Derailleur Pulley
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 .
Adapt to the bike speed: 7/8/9/10/11/12 speed
Acrew axis:Fit for 4/5/6 MM roller screw axis
Bearing:ceramic bearing ,stainless steel shell , more durable
Copper Bushing , Resistant
Apply for most of rear derailleur on the market
