Shimano XT M8100 12-spd Rear Derailleur

Product Code 20205454
Other products by Shimano
  Options Price RRP In
Long Cage / Black $199.50 $220.00
Price may differ in our Retail store.
  • In-store: Expect delivery in 2-3 days.
  • With Supplier: Expect delivery in 4-7 days.


The Shimano XT RD-M8100 1x12-speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface.

The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology.

  • Shadow RD+ For optimal chain retention
  • RD-M8100-SGS  
    • 51T max cog size
    • Works with both 12-speed 10-51 and 10-45-teeth cassettes
  • Pulley size with 13T increased for reduced friction
  • Compatible chain: CN-M8100 12-speed
  • Weight: approx. 284g (manufacturer information)