XTR M9100
12sp Derailleur
SGS, Long Cage


Shimano XTR M9100 12sp Derailleur, SGS Long Cage

This Shimano XTR M9100 Derailleur is the SGS, or long cage, option capable of running 1x12sp 51t cassettes.

Shimano XTR M9100 Derailleur Part Number:


In-Stock: updated 02/02/23. Ships same or next business day!


Shimano XTR M9100 12sp Derailleur, SGS Long Cage

SGS Long Cage  is designed for Shimano 1x12sp with HyperGlide +

This is a long cage derailleur capable of running the 10-51t cassette as well as the 10-45t option.

Questions? Chat, email or call and we will get you on the right product!

Ensure the best performance of your new drivetrain with proper chain lube procedures. Check out a post on how important the right lube is here!

Shimano XTR M9100 12sp Derailleur SGS Details

Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10×1 Standard
Drivetrain Speeds: 12
Cage Length: Long
Chain Wrap Capacity (teeth): 41 teeth
Largest Cog: 51
Color: Gray
Weight: 240 g
Rear Der/Shifter Compatibility: Shimano Mountain

UPC: 689228880252


Questions? No problem. BikeCo’s staff is here to ensure you get the right product, at the right price for your particular riding needs.

Chat, call or email us for more details on products as well as product pairings. Everyone at is here to ensure you get the most out of each ride. We know how important it is to have the best working bits on your mountain bike because we all ride! – the best spec, setup, tune and pricing in MTB.

Contact Me Regarding This Product

  • Please contact me by:

  • Question on availability? Spec? Compatibility?
    Our team will be in contact within 24 hours!

  • Hidden
  • Hidden
  • Hidden
  • This field is for validation purposes and should be left unchanged.

Additional information

Rear Derail Brand


Sale Or Take Off

Drivetrain Component


Shop by Brand



M9100 SGS