This Shimano 105 series rear derailleur uses the same wide link design as the proven Dura-Ace and Ultegra series. Wide links allow for quick shifting and buffer the pivots for durability and to maintain crispness over time.
- Compatible with 10-speed drivetrains
- Maximum sprocket capacity is 30T
- Minimum sprocket capacity is 11T
- Maximum front difference is 16T
- Total capacity is 34T
