SRAM REAR RIVAL1 TYPE3.0 MID CAGE 11s BLACKA dedicated SRAM 1x rear derailleur Exact Actuation for fast and accurate shifts using SRAM`s 1: 1 actuation ratio X Sync pulley features a 12 tooth design that helps control the chains lateral movement Roller Bearing Clutch controls chain tension for consistent shifting By eliminating unwanted chain movement, X horizon shifts faster, reducing shift effort and chain slap Cage Lock technology makes for fast wheel changes or chain installation
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