The Sram Force 1 Type 3.0 Rear Derailleur is designed for mountain biking thanks to its 1x transmission, 11 speeds, and compatibility with 28, 36, and 42 teeth. It gives precise shifting using the 1: 1 Sram ratio, chain control and tension, as well as it eliminates bounce, avoids ghost shifting, and chain bump, due to bearing clutch. This bike rear derailleur is made of aluminum, while pulley bearings are steel. The X SYNC technology provides good performance, easy shifting, and silent operation. The X HORIZON allows for faster and effortless shifting. Besides, it comes with a cage lock that makes wheel removal and installation easier.Specifications:- Number of gears:11-Speed- Mount:Direct mount- Largest workable chainring:36 Teeth- Smallest workable chainring:11 Teeth- Cage length*:Mid-cage- Bicycle type:Road Bike- Weight:261g- Material:Aluminum/steel- Product type:Rear derailleurCapacity:Difference between largest and smallest front chainring:- For example (48 / 36 / 32) 48 - 32 = 16Difference between largest and smallest rear chainring:- For example (32 / 30 / 28 / 26 / 24 / 22 / 20 / 18 / 14 / 11) 32 - 11 = 21- Capacity 16 + 21 = 37.For 2x10V systems.- Compatible with cassettes 11-42T.