Shimano XTR RD-M9100 Rear Derailleurs MTB po-birkenstockaddon-420 waterproof DRYVENT™ inserts

waterproof DRYVENT™ inserts

wind resistant

Insulation made with hollow-core fibers for warmth

Lightweight at only 240g (8 oz)

Why We Made This

Shimano XTR RD-M9100 Rear Derailleurs MTB po-birkenstockaddon-420 waterproof DRYVENT™ insertsHyperglide+ 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 Bigger 13T pulleys with sealed bearings for increased drivtrain efficiency Weight: 240g (SGS) Attributes Maximum