Road Bike Ceramic Pulley Rear Derailleur 12T 14T 16T 18T Guide MTB Ceramic Bearing Jockey Wheel For Shimano Sram GX Bicycle Part

Feature:

it is machined by AL 7075-T6 round rod ,finished machined by diamond

,with diamond metal texture and good abrasion resistance index ,

it adopts ed 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 .

Product Name: Jockey Wheel Bicycle Rear Derailleur Pulley

Size:12T,14T,16T,18T

Adapt to the bike speed: 7/8/9/10/11/12 speed

Acrew axis:Fit for 4/5/6 MM roller screw axi

Body: 7075 aluminum alloy

Diameter:50mm(12T),55mm (14T),68mm (16T),77mm (18T)

Bearing:ceramic bearing ,stainle steel shell , more durable

Copper Bushing , Resistant

Color: red blablue gold Green

Net Weight: approx 14.9g

Apply for most of rear derailleur on the market

Package:

Narrow-Wide teeth Rear Derailleur pully *1 pc

Copper Adapter * 2 pcs(4mm,5mm)