With a raceworthy weight and the right gearing for any situation, microSHIFT’s top-of-the-line ADVENT X rear derailleur delivers high-end performance without high-end headaches. By using a 10-speed chain and wide range 11-48t cassette with predictable, evenly spaced gear steps, ADVENT X allows you to find the right gear even in challenging conditions. Add in microSHIFT’s proprietary ratchet-and-pawl clutch, larger pulleys with taller teeth for better chain retention, and metric adjustment hardware, and you’ve got everything you want and nothing you don’t. Compatible with ADVENT X 10-speed drivetrains only Compatible with standard 10-speed chains Ratchet-and-pawl clutch provides chain security and can be turned on and off with a switch Metric adjustment hardware Larger pulleys with taller teeth improve chain security and provide higher overall ride height Aluminum cage Mountain biking isn’t complicated – your drivetrain shouldn’t be either. ADVENT X is our widest range and also lightest 1 x 10 MTB group, but it still works with a normal freehub body and chain. Paired with our durable Rachet-and-Pawl clutch, it’s never been this easy to own a top of the line drivetrain.