- X-Actuation ratio specifically engineered for SRAM's 1x11-speed mountain drivetrain
- X-Horizon design aligns the parallelogram to a horizontal axis providing constant chain gap across all 11 gears resulting in fast, precise shifts with reduced shifter force
- Type-2.1: self lubricating, roller bearing clutch mechanism provides one-way friction damping to cage improving chain stability and reducing chain-slap/noise, with an incorporated CageLock feature for faster wheel changes and chain service
- X-Sync 12-tooth pulley design reduces noise and maximizes chain control by alternating wide/narrow teeth to mirror chain profile, while upper pulley offset maintains chain gap to cassette
- Forged aluminum links, B-knuckle, and inner cage with a carbon fiber outer cage
- Aluminum and stainless hardware with sealed cartridge bearing pulleys
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