Feature

●Bicycle rear derailleur gear rollers: can be used for chain transport and speed change. Diameter: 50 cm; Teeth: 12T. Stronger compatibility with flexible rotation
●Lightweight and durable: Made of high-quality aluminium alloy with fully sealed bearings. Easy to use and install with great durability.
●Increase efficiency: ceramic material can reduce resistance, which can improve the efficiency of the cycle. Stronger compatibility with flexible rotation.
●Runs smoothly: bicycle rear derailleur gear rollers guarantee smooth shifting behaviour and quiet running of the chain. The chain can be positioned precisely via the rear derailleur without negatively affecting the shifting process.
●【Application】Suitable for most 12 teeth rear derailleur on the market and with 4/5/6mm guide wheel bolts. Note: The installation area must be larger than 50 mm.


Description

Specification:

Type: bicycle rear derailleur gear wheel

Material: aluminium alloy + ceramic.

Colour: red.

Support for 7/8/9/10 speed bikes

Diameter: 50 mm / 2 inches.

Thickness: 8.5 mm / 0.34 inches.

Teeth: 12.

【Feature】

1. This product is made of high quality aluminium alloy and is durable

2. Positive and negative tooth guide wheel, no strange force and faster speed

3. Ceramic material can reduce resistance, which can improve cycle efficiency

4. Stronger compatibility with flexible rotation

5. Suitable for 4/5/6mm guide wheel bolts

Note: !】

The installation area of the guide wheel must be larger than 50 mm diameter.

Package includes:

1 x bicycle rear derailleur gear roller.

2 x installation hole adapters.