Shimano Deore XT RD-M8200 SGS 12-Speed Rear Derailleur

Long-Cage XT for the Full 10-51T Range

The RD-M8200 SGS is the long-cage Deore XT mechanical rear derailleur built for 12-speed 10-51T cassettes. Shadow ES keeps the profile low and out of the way of rocks and roots, and a spring-loaded stabilizer helps the derailleur absorb hits and return to position instead of bending or staying knocked out of line.

Shifting under load is fast and precise thanks to the updated cage and pulley design, and the alloy cage keeps weight reasonable for a derailleur that's meant to take trail abuse. Use it with the CS-M8200 10-51T cassette and an SL-M8200 shifter (or compatible Hyperglide+ 12-speed shifter) for a full mechanical XT drivetrain.

Whether you're building a new XT trail or enduro bike, replacing a bent derailleur after a crash, or converting to the wider 10-51T range, the RD-M8200 SGS is the long-cage XT derailleur that matches.

Shimano was founded in 1921 by Shozaburo Shimano in Sakai, Japan, and the company is still based there today. More than a century later, it's one of the biggest names in cycling components. Deore XT sits just below XTR in Shimano's mountain lineup and brings race-proven performance to trail, enduro and everyday mountain riders.