LINKGLIDE 11-speed right hand shifter with Instant and 2-Way release to exceed the demands of ever changing bicycle designs and riding stylesLight to the touch but positive and crisp, Vivid indexing provides a constant amount of shift lever force across all 11 sprockets2-Way release: the upper lever still performs the same shift function, but it can now swing in either direction allowing it to be released by the thumb or index fingerMulti-bearing design uses two ball bearing units to provide a low-friction and reliable shifting actionOne piece lower alloy thumb release lever with anti-slip increases durability and gives sharp precise shiftsFor use with 11-speed LINKGLIDE transmissions onlyMulti-position adjustable handlebar clamp for custom lever positioning