Sram x9 front derailleur high clamp top pull 349mmhigh performance and tons of style guaranteed heavily inspired by x044 with materials and technologies to meet the demands of any rider new features for the 2007 x9 trigger shifters include sram39s zero loss travel44 and adjustable clamp positions44 just like it39s bigger brother x0 the rear derailleur has also been re designed for 200744 and features a forged b knuckle for improved stiffness44 and the addition of a short