The XTR 12-speed chain provides enhanced chain retention thanks to an extended portion of the inner plate. The new chain features quick-link assembly and SIL-TEC treatment for extended offroad durability.

The XTR M9100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

The Shimano XTR RD-M9100 Rear Derailleur has been upgraded from 11-speed to 12-speed and has the capacity to go up to a 51 tooth cog on the rear. The RD-M9100 is designed for 1x12 drivetrains and comes in GS (short cage) and SGS (long cage).

XTR RD-M9120 XTR 12-Speed Rear derailleur, SGS Long cage, for 10-45T/double Ring

This is Shimano's XTR M9100 Rear Derailleur. The extra cog of 12 speed gives you more range and allows for smaller jumps between cogs to help you find the right gear. Features: Available in two cage sizes. The medium cage provides 28mm of extra ground clearance. Max. Tooth: 45T (Medium Cage), 51T (Long Cage)

With this totally new XTR line available in both Race and Trail "Rider-Tuned" product families, Shimano leverages its 22 years of engineering leadership producing the industry's highest performing mountain bike component group.

The new XTR RD-M9100 Rear Derailleur is specifically optimized for Shimano's new wide range cassettes, and features several updates that ultimately lead to smoother and quieter drivetrain operation.

Jul 11, 2018 · RD-M9100 XTR 12-speed rear derailleur, GS medium cage, for 10-45T/single ring. 6.1 x 6.02 x 3.98 inches. 0.41 Kilograms. 0.01 Ounces. SHIMANO. Rdm9100gs. Standard. other. unisex. Shimano XTR. IRDM9100GS. 2019. Bike Parts. GS - medium. Help others learn more about this product by uploading a video! Looking for specific info?

Apr 3, 2024 · The new XTR RD-M9100 Rear Derailleur is specifically optimized for Shimano's new wide range cassettes, and features several updates that ultimately lead to smoother and quieter drivetrain operation.