Shimano XTR RD-M9100 12-speed Shadow Plus Rear Derailleur

The XTR RD-M9100 rear derailleur by Shimano – For 1x drivetrains
The XTR RD-M9100 rear derailleur was designed by Shimano exclusively for 1×12-speed drivetrains. It has enlarged 13-tooth derailleur pulleys for smoother operation and an additional stop on the swing arm that reduces noise. Of course, the Shadow+ damping technology is also used here, where a stabiliser counteracts sagging, slapping and dropping of the chain. Several pieces of the RD-M9100 are made out of a lightweight carbon. The XTR rear derailleur is available in two versions, namely with a shorter cage (GS) for 10-45 cassettes and with a long cage (SGS), which can shift 10-51 cassettes.
Guidelines for Replacing E-bike Components:Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.
Specifications:Series:XTR M9100Application:Cross Country, EnduroGearing:12-speedMount:standardCapacity:35 tooth (short), 41 tooth (long)Compatibility:Shimano MTB 12-speedCompatibility – Chains:HG 12-speed (e.g. CN-M9100)Technical Information:Derailleur Pulleys:13-toothOuter Cage Material:carbon (CFRP)Inner Cage Material:AluminiumOther Materials:aluminium, stainless steel, carbon (CFRP)Compatibility:MTB 1×12-speed:
Shifter:SL-M9100, SL-M8100, SL-M7100, SL-M6100Cassette:
short / GS: 10-45 T: CS-M9101-12, CS-M9100-12, CS-M8100-12, CS-M7100-12long / SGS: 10-51 T: CS-M9101-12, CS-M9100-12, CS-M8100-12, CS-M7100-12, CS-M6100-12Chain:CN-M9100, CN-M8100, CN-M7100, CN-M6100E-Bike:EP8 EP800 for MTB / City & Touring, STEPS E8080Features:lower preload in the lower gears to avoid too high of a chain tensionadditional stop on the shift rocker for low-noise drivetrainlarger 13 T upper pulleyGS version with 28 mm more ground clearancecage plates painted/anodised8 pivot bushings, fluorine-coatedderailleur pulley bearings sealedTechnology:Shadow RD+
Shadow Plus rear derailleurs are just as low-profile as Shimano’s Shadow rear derailleurs. In addition, a stabilizer with on/off switch is used to reduce chain slap and thus counteract chain drop. At the same time, this results in a quieter drive. Weight is also saved compared to other chain restraint devices.
Models:short:
Cage Length:GSMax. Largest Sprocket Teeth:45-toothMin. Largest Sprocket Teeth:45-toothMax. Smallest Sprocket Teeth:10-toothMin. Smallest Sprocket Teeth:10-toothMax. Chainring Difference:0-toothTotal Capacity:35-toothManufacturer Number:I-RDM9100GS
long:
Cage Length:SGSMax. Largest Sprocket Teeth:51-toothMin. Largest Sprocket Teeth:51-toothMax. Smallest Sprocket Teeth:10-toothMin. Smallest Sprocket Teeth:10-toothMax. Chainring Difference:0-toothTotal Capacity:41-toothManufacturer Number:I-RDM9100SGSContents:1 x Shimano XTR RD-M9100 Shadow+ rear derailleur