- 10/11/12 speed compatible rear derailleur with forged alloy links
- Compatible with 1x (=50T) and 2x (=42T) drivetrains
- Integrated adjustable chain stabilizer
- DER SUNRACE RDMS30 MID 10/11/12s DIRECT BK
Speed: 10/11/12sp
Max: 50/42
Cage/Mount: Mid
Ratio: 2to1
Color: BLK
Wgt: 347g
Type: Mechanical