The Shimano 105 12-speed rear derailleur combines the smooth and stable shifting that is a staple of Shimano Shadow RD design with direct mount compatibility and a wider gear range capacity.

Shadow RD offers a low-profile design with single tension construction that prevents the derailleur from hitting the chainstay in rough riding conditions

Direct Mount feature is design for large contempory frames with large section chainstays in particular mountain bikes with thru-axle dropouts

Wider gear range capacity and stable shifting performance

Compatible with HG 12-speed chains

41t total capacity

36t low sprocket maximum

34t low sprocket minimum

Largest Cog	36
Rear Der/Shifter Compatibility	Shimano Road
Rear Derailleur Mount Type	Shimano Rear Direct Mount
Drivetrain Speeds	12
Chain Wrap Capacity (teeth)	41
Cage Length	Medium
Color	Black
Weight	249