
Every detail of the 11-speed X1 X-HORIZON™ rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-SYNC™ pulley wheels. By eliminating unwanted chain movement, X-HORIZON™ shifts faster, puts an end to ghost shifting & reduces shift force & chain slap. & with CAGE LOCK™ technology, wheel removal & installation are easier than ever. CAGE LOCK™ With CAGE LOCK™ technology in the rear derailleur, wheel removal & installation—as well as chain installation—becomes faster & simpler. Just pushing the cage forward to create slack & lock it into place. ROLLER BEARING CLUTCH™ ROLLER BEARING CLUTCH™ rear derailleurs deliver maximum drivetrain stability—even through the most punishing terrain. With ROLLER BEARING CLUTCH™ technology, derailleur bounce & chain slap are eliminated without sacrificing precision. X-Actuation™ Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp & consistent across the entire 10- to 42-tooth cassette. X-HORIZON™ The X-HORIZON™ rear derailleur’s ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears. X-SYNC™ SRAM X-SYNC™ 1X chain rings provide the highest level of performance & durability. The SRAM X-SYNC™ tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp & narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC™ chain rings have been designed with mud-clearing recesses for the inner chain links & rollers. Engineered in Germany, X-SYNC™ rings are an integral part of the SRAM 1X™ drivetrain.