
Shimano XTR RD-M9100
The Shimano XTR RD-M9100 is Shimano's flagship mountain bike rear derailleur, with Hyperglide+ shifting, a low-profile Shadow Plus design, larger 13T sealed-bearing pulleys and reduced chain tension in low gears; the SGS cage covers 12-speed 10-51T cassettes while the GS handles 10-45T. It is for XC and trail riders building or upgrading to a top-level 12-speed drivetrain.
- Hyperglide+ offers fast and shockless shifting
- Silent and stable operation in all gears
- Low-profile design
- Two cage lengths available: SGS, compatible with 12 speed 10-51T cassettes, and GS, compatible with 11 or 12 speed 10-45T cassettes
- Decreased rear derailleur and chain tension in low gear
- New bumper added to rear derailleur pulley cage
Pairs well with

Shimano XTR RD-M9100
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