With a road-racing design built for everyday performance, this 105 rear derailleur ensures smooth shifting for years to come. The Shadow design helps keep the derailleur out of harm's way, should your bike take a tumble.
- Lightweight aluminum pulley cage helps reduce weight without affecting performance.
- Maximum sprocket capacity is 34T.
- Minimum sprocket capacity is 11T.
- Maximum front difference is 16T.
- Total capacity is 39T.
Braze-on mounting uses fittings permanently mounted to the frame. Collar mounted derailleurs secure around the seat tube with a clamp. Direct mount are fastened to the chainstay.
The maximum number of teeth difference between the smallest and largest chainrings (front derailleur) or cogs (rear derailleur).
One-way friction clutch that increases chain tension, reduces chain and cage movement, and reduces dropped chains. Releases for wheel removal.