MEROCA Bike Gear Derailleur Pulley 13T Aluminium Alloy Jockey Wheel Guide Pulley Bike Guide Roller Wheel

• Made of high-quality aluminum alloy, sturdy and durable, which makes the derailleur pulley anti-rust, and corrosion resistant, so it can be applied for a long time

• Deep toothed guide wheel to reduce chain drop

• Positive and negative tooth guide wheels can effectively inhibit the horizontal swing of the chain so that the speed is more accurate

Specification: 

• Material: 7075 high-strength aluminum alloy + metal 

• Palin size: 13T diameter of about 49mm 

• Guide wheel: with 4/5/6mm shaft 

• Weight: 13T 8.8g 

Note: 

1. Please try to use the same size as the original guide wheel. There is no difference, you can choose smaller than the original guide wheel, but you can not choose a larger one.

2. Support most dialing on the market, support 7/8/9/10 speed! 

3. The guide wheel and the tension wheel are not distinguished. Some original rear guide wheels and the tension pulley are not the same in size and can be replaced. It is necessary to re-adjust the length of the chain.