Sram X1 11-Speed Rear Derailleur Type 2.1

The SRAM X1 Type 2. 1 Rear Derailleur takes the original design and makes some tiny improvements to elements like the bearings and the clutch mechanism to ensure better performance and longevity. We like that the X1 11-Speed Rear Derailleur packs in all of SRAM's top one-by engineering to ensure rear shifts are smooth, accurate, and predictable. Starting with the offset pulleys, the tall square-toothed X-Sync profiles work to positively engage and manage the chain better than traditional pulleys. These pulleys work in conjunction with the X-HORIZON's straight parallelogram design, which limits all movement to the horizontal axis, thus eliminating ghost shifting and reducing shifting force. SRAM's proven Roller Bearing Clutch is also present, which delivers maximum drivetrain stability by maintaining consistent tension on the chain -- even while riding in the most demanding conditions. Finishing off the rear mechanism are sealed cartridge bearings and SRAM's handy Cage Lock design that keeps the derailleur locked out of the way for easy rear wheel installation/removal.

• High-performance SRAM X1 11-Speed Rear Derailleur with Medium Cage for versatile mountain biking and gravel riding.
• Constructed with durable, lightweight materials weighing only 256 grams, offering excellent strength-to-weight ratio for demanding rides.
• Advanced X-Horizon design ensures smooth, precise shifting across an 11-speed cassette with a maximum 42T cog, eliminating ghost shifting for reliable performance.
• Integrated roller bearing clutch with chain slap eliminator provides enhanced chain stability, reduced bounce, and quieter ride in rugged terrain.
• Features a Cage Lock mechanism for quick wheel removal and chain installation, plus wide-tooth pulleys that improve chain control and durability in variable conditions.