The Shimano 105 (5700) rear derailleur uses wide link design for rigid stiff accurate shifting.

Short cage - SS
- Maximum front difference 16T, total capacity 33T
- Weight 221 g

Medium cage - GS
- Maximum front difference 22T, total capacity 39T
- Weight: 232 g

Key Features:
- 10-speed 105 wide link rear derailleur
- Advanced Wide Link design increases rigidity and shifting performance
- Super stiff for fast and accurate changes across the cassette
- Large 11 tooth pulleys increase service life and reduce noise
- Super light shift action
- Compatible with 8, 9, and 10-speed drivetrains