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Shimano XTR M988-B Trail Pre Bled Disc Brake System

SAVE 55%

Shimano XTR M988-B Trail Pre Bled Disc Brake System

Riding comfortably at speed requires an unconscious, intuitive confidence in your machine. It requires knowing that whatever conditions you come across your brakes will be ready and able to deliver reliable control in any situation.

Say hello to XTR Trail brakes, and say goodbye to compromise. The integration of Servo-Wave brake-boosting technology into an XTR-level brake generates gobs of lightweight stopping power (125 percent of the previous XTR benchmark, to be exact) that can be precisely rolled on and off with single-finger effort - leaving a better grip on the bar for charging through the gnar.

With industry-first full ceramic caliper pistons, radiator-fin-backed brake pads to shed performance-sapping heat, and innovative IceTech aluminum-core rotors to even further keep heat buildup at bay, these all-new brakes maintain cool, quiet performance under fire.

As the most powerful and most controllable XTR-level brake of all time, XTR Trail absolutely assassinates wide-open descents with uncanny consistency, delivering more confidence than ever before.

  • Pre Bled with Shimano brand mineral oil
  • Barb/Olive are included for shortening brake line (if needed)
  • Adapters and rotors sold separately
  • Compatible with new XTR-980 (SM-SL98B) i-spec bracket
  • Includes pads

Rotors not included! Scoop some here Disc Brake Rotors.




Hose Length

Front: 970mm Rear: 1670mm

Caliper Type

2 Piston

Caliper Mount

74mm Post Mount

Piston Type

Oversized Ceramic


245 grams

Brake Fluid Type

Shimano Mineral Oil

Showing Questions 1 of 1

Q: Is this a set of brakes or just one wheel's worth?

A: This comes as 1 brake. A front or rear.

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So Clutch. So light. - Oct 24, 2015

1 2 3 4 5
5 out of 5 stars
Northridge, CA

The title pretty much says it all.

0 out of 0 people found this review helpful
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Great Stopping Power - Oct 12, 2015

1 2 3 4 5
5 out of 5 stars
Prior Lake, MN

These brakes have improved my riding so much. I can go through rough sections a lot faster knowing that I can stop a lot quicker if I run into trouble. The reach adjustment is so easy that you can do it while riding. They are also super quiet. Great brakes.

1 out of 1 people found this review helpful
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Awesome! - Apr 23, 2014

1 2 3 4 5
5 out of 5 stars

These have to be the best brakes I've owned. they have great power and great modulation. I run them 200F/180R on both my bikes because I'm over 200 lbs and ride aggressive AM/DH. I had multiple Avids that came on my bikes and while good on power there was no modulation, they squealed and always had issues. These have been trouble free for almost 2 years now. I also have a set of XTs on my other bike witch are pretty darn close in all terms.

1 out of 1 people found this review helpful
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Sweet - excellent 1st impression with XTR - Sep 10, 2013

1 2 3 4 5
5 out of 5 stars

On my previous MTB, I had been using a set of XT M755 4-piston brakes 5-6 years--they were an excellent brake and never let me down. My 2013 SJ came with Avid Elixir 5 SL-- at times, they howled louder than a turkey and when wet... I purchased the M988-B from PricePoint and am very glad I made the change. Stronger braking power than the 4-piston XT's and there isn't even a comparison with Avids. The M988 will make a minor grinding noise and will occassionally howl when wet, but nothing sustained. I am still getting used to the braking power -- more than once I have applied the rear brake a little too quickly when trying to scrub off some speed and was thrown forward much more quickly than expected ;-) When I first installed the XTR's, I did not remove the CPS washers and was only contacting about 2/3's of the brake pad -- even when setup that way, they had more braking power than the Avid's. BTW, I am still using the Avid rotors (HS-1) -- it will be interesting to see if I notice much difference with Shimano rotors. Mind you, with the extra stopping power, I have considered getting smaller rotors (i.e., change from 200 F / 180 R, to 180 F / 160 R.

5 out of 7 people found this review helpful
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