SRAM SX Eagle 12 Speed Rear DerailleurFeaturing a hard-wearing steel construction, this trail-ready 12 speed rear derailleur is prepared for the intensity that comes with all-day epics on your favourite mountain bike (MTB) trails. A perfect entry point into the SRAM Eagle Ecosystem, this model shares many of its features with the rest of the Eagle series such as its proven SRAM 1x-specific X-Horizon body design that can accommodate both 11-50T and 10-50T cassettes. The SX Eagle is cross-compatible with much of the Eagle Ecosystem, making it easy to personalise and upgrade your ride when you are ready.- A full-featured Eagle derailleur, compatible with the Eagle Colour system.- X-SYNC pulley technology provides greater efficiency, crisper shifting, and quieter operation.- Cage Lock offers discovery-level riders easy wheel removal.Features: Pulley Bearings Material: Steel Cage Material: Steel Use: MTB Speed: 12 speed Cable Pull Ratio: X-Actuation Cage: Long Max Tooth: 50T Technology Highlights: X-Actuation, X-SYNC, Cage-Lock A full-featured Eagle derailleur, compatible with the Eagle Colour system SRAM 1x-specific X-HORIZON body designTechnologies: Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation-as well as chain installation-becomes faster and simpler. Just push the cage forward to create slack and lock it into place. X-Actuation: Developed specifically for SRAM 1x, X-Actuation keeps shifting sharp and consistent across the entire cassette. X-Horizon: This 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 chainrings 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, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation. Eagle: Eagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.Manufacturer’s Part Numbers: 00.7518.155.000 Black up to 50TBuy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.