Sram X1 Type 2.1 Rear Derailleur Black 11s / Max 42t

The Sram X1 Type 2.1 Rear Derailleur has technologies that facilitate fast, safe, and smooth shifting, eliminate ghost shifting, and provide stability so you can go up and down in the mountains, and even cross the most rugged terrains. It is compatible with 42 tooth and 11 speeds and includes a bearing clutch that eliminates chain bounce and bumps.This bike rear derailleur is made with aluminum, while the pulley bearings are made of steel. The X SYNC technology provides good performance, simple shifting, and silent operation. The X HORIZON allows for faster and effortless shifting. Besides, it comes with a cage lock that makes wheel removal and installation easier. It features X-Actuation technology specially designed for 1x transmissions and avoids ghost shifting. 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 and reduces shift force and chain slap.And with CAGE LOCK™ technology, wheel removal and installation are easier than ever.Features:- X-HORIZON™ design reduces shift force, ghost shifting and chain slap - 12-tooth X-SYNC™ pulley wheels - Large upper pulley offset automatically adjusts chain gap - Sealed cartridge bearings - Aluminum Cage Specifications:- Speeds:11-speed - Material:Aluminum cage - Weight:256g - Compatibility:1x11 X-ACTUATION™ - Bearings:Sealed cartridge bearings - Cage Sizes:Long - Pivot Design:Horizontal Parellelogram design - Max Tooth:42t - Pulleys:12-tooth X-SYNC™ pulley wheels - Technology Highlight(s):X-ACTUATION™, X-HORIZON™, X-SYNC™, ROLLER BEARING CLUTCH™, CAGE LOCK™ Technology:CAGE LOCK™:With CAGE LOCK™ technology in the rear derailleur, wheel removal and installation™as well as chain installation™becomes faster and simpler.Just pushing the cage forward to create slack and lock it into place.ROLLER BEARING CLUTCH™:Rear derailleurs deliver maximum drivetrain stability™even through the most punishing terrain.With ROLLER BEARING CLUTCH™ technology, derailleur bounce and chain slap are eliminated without sacrificing precision.X-ACTUATION™:Developed specifically for SRAM 1X, X-ACTUATION keeps shifting sharp and 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 and durability.The SRAM X-SYNC™ tall square teeth edges engage the chain earlier than traditional triangle shaped teeth.The sharp and narrow tooth profile, as well as rounded chamfer edges,