2Pcs 12T 14T Ceramic Bearing Bike Rear Derailleur Pulley Guide Pulley Roller Idler For SRAM XX1 GX SHIMANO Bicycle Jockey Wheel

Description

specification

Bike Cycling Aluminium Ceramic bearing Jockey Wheel Rear Derailleur Pulley 12T,14T
Gear: 12T 14T
Bearings: Ceramic bearing.  Stainless shell , durable
Colour: Blue, Black,Gold ,Red,Green
Weight: approx 14.9g

Diameter: approx 50mm12T
Installation dimension:4/5/6mm
Material: 7075 Aluminium Alloy body& Ceramic Bearing

Fit For: Shimano Sram 9/10/11/12 Speed bike Rear Derailleur

Copper Adapter: 4mm,5mm

Fearture:
12T/14T teeth bicycle rear derailleur accessary.
Made of CNC aluminum alloy, lightweight and durable.
A necessary accessary for your bicycle.
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 .

package:
Narrow wide gear Cycling Bike Wheel Rear Derailleur Pulley x 2 pcs