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Shimano XT RD-M8100 12-Speed Rear Derailleur

sku# 167143
Shimano - XT RD-M8100 12-Speed Rear Derailleur
Model Info
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Product Info

With a Shimano XT RD-M8100 12-Speed Rear Derailleur in charge of your shifts, it doesn't matter if you hit the bottom of a climb out at the smaller end of your cassette: a couple clicks of the lever and you'll be spinning uphill in your 51 tooth pie plate without a care in the world. Known for crisp shifting--even when you're putting the power down--an XT rear derailleur is always a fine choice.

Product Details


Shadow+ Chain StabilizerProvides a simple, lightweight chain control solution.

Stronger Return Spring for Crisp Shift Feeling

Shadow ClutchExternally adjustable clutch for easier spring tension adjustment. Reduces chain slap and dropped chains, on-off switch allows for simple wheel changes.

Low Profile Derailleur CageReduces collection of debris and potential for damage.


Compatible with Shimano 12-Speed Drivetrains

Fast and Shockless Shifting


  • Material: Aluminum
  • Biking Type: Mountain More 
  • Warranty: 2 Years
Size Long Cage Medium Cage
Weight (g) 284

Other Notes

Shimano products can only be shipped within the United States and Canada



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