TEAMWILL Bike Ceramic Pulley Rear Derailleur 12T 14T Guide Bearing Jockey Wheel

TEAMWILL Bike Ceramic Pulley Rear Derailleur 12T 14T Guide Bearing Jockey Wheel

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) 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)