- Increase maximum cassette sprocket capacity by 4-10T
- For road bike short cage rear derailleur(SS) to use with maximum cassette sprocket of 32/34/36T
- For road bike medium cage rear derailleur(GS) to use with maximum cassette sprocket of 36/40/42T
- For MTB long cage rear derailleur(SGS) to use with maximum cassette sprocket of 50T
- Improve smoothness during gear change after modification using sprocket extender.
*We try our best to maintain accurate product info, however there might be cases specs or colour are differ to actual product, please contact us for updated info.