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XTR BR-M9120 Disc Brake Caliper

5 out of 5 stars
1 Review

Style & Size:


XTR BR-M9120 Disc Brake Caliper

Bringing your braking system into what we like to think of as the golden age is Shimano's newest iteration of its classic trail brake — the XTR BR-M9120 Disc Brake Caliper. This high-power, stop-you-in-your-tracks caliper is built for getting rowdy on the steeps, pushing yourself down gnarly lines, and stopping on a dime when you come across a moose in the trail. That's because of its beefy 4-piston construction, and heat dissipating IceTec pads that keep your rotors feeling cool and fresh, even when you've got to do more braking than normal, on steeper sections of trail.

To start the calipers off strong. Shimano employs some similar technology from previous generations, including titanium hardware, and a one-piece aluminum caliper design that is lighter, and better at heat distribution. It utilizes a mounting bolt that increases stiffness and power, to improve speed and reliability in your braking. The XTR M9120 Brakes feature Ice Tech radiator pads and insulated pistons that continue Shimano's prowess in heat dissipation, aiming to all but eliminate heat as an issue on long, steep descents that require more braking than normal. Compared to M9000, the new M9120 features quicker brake pad engagement for faster response when you need it, and a claimed 10% improvement in braking power over the M9020 of years past.

You may be wondering where the M9120 falls in comparison to the equally new and shiny M9100. While the M9100 may shed grams above the M9120, you'll find that it lacks the adjustability, and some of the stopping power. The M9120 uses two more pistons in the calipers making it more ideal for enduro and trail shredding, while the M9100's minimalist approach slides it to the ideal spot for racing cross country and marathon. That's because 9100 skips the bells and whistles, like Servo Wave adjustment, and free stroke adjust, opting for a more minimalist, but featherweight application.

The Shimano XTR M9120 Brake Calipers come individually, so please order both front and rear sets if you'd like a pair. The brakes were optimized for performance with Shimano's Ice Tech brake rotors, which are not included.


  • Trail-ready brakes with more stopping power than ever
  • Optimized with 10% more braking power than 9020
  • Pairs with 9120 levers for total adjustability and control
  • IceTec brake pads dissipate heat quickly to keep rotors happy
  • 4-pistons offer ultimate stopping power under pressure
  • Sold as individual rear or front, so snag both if you need a pair
  • Item #SHI00NZ
hydraulic disc
Mount Type
Recommended Use
enduro, trail
Manufacturer Warranty
3 years

Overall Rating

5 based on 1 ratings

Review Summary

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5 Stars - 1 reviews

Fits True To Size

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5 out of 5 stars

June 8, 2024

Xtr caluper

I've put it through the wringer
Size Bought:

Old xtr caliper piston leak, so had to get another one . Shipping was fast , product is great . A lot of modulation and stopping power

Toilet hitman