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Shimano Deore XT BR-M8120 XT 4-Piston calliper, Post Mount, Without adapters, Front or Rear, Black

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$106.50

$ 42 .99 $42.99

In Stock

About this item

  • Shimano Deore XT BR-M8120 XT 4-piston calliper, post mount, without adapters, front or rear


  • High performance hydraulic disc brake for efficient braking in all conditions
  • Front or rear wheel use for International Standard or Post mount with adapters (not included)
  • 4 oversized phenolic pistons optimized for heat insulation, lightweight and stiffness
  • Opposed 4-piston design reduces leading effect and optimal pad wear increases braking control
  • Increased pad to rotor clearance reduces the chance of rotor drag in muddy conditions
  • Forged calliper design is lightweight and rigid
  • One way internal fluid circuit makes bleeding easy
  • Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid
  • Shim-less mounting bracket allows for quick installation and setting up
  • Recommended for use with Ice Tech Center Lock rotors for optimum braking performance
  • Comes with N03A resin pads with fins
  • Can be used with Ice Tech pads available in resin or sintered compound, the optional aluminum radiation fin pad further improves heat dissipation reducing brake surface temperature by 50 deg C

Peter Hank
Reviewed in Germany on February 2, 2025
Mit jahrelanger Erfahrung mit dem MTB kaufe ich nur noch aus der XT-Serie. Genial in Funktion und Zuverlässigkeit. Kommt an meine Räder nichts mehr anderes
jscrapple
Reviewed in the United States on September 17, 2024
I have had several of these brakes - when they are working properly, they have great stopping power and everything is fine. However, they frequently have issues, and two of the three I have owned over the past few years eventually get stuck pistons. Since the pistons are ceramic, they are fragile and not repairable. These have just cost me way too much wasted time - would not recommend.
John Sluder
Reviewed in the United States on August 18, 2024
Was a used part, leak from the pistons from day one, return the unit, sent back the same broken brake as a new replacement part. AVIOD this company...
Stuart Till
Reviewed in the United States on June 3, 2024
I have had 4 of these on different bikes over the last decade.They are great in the beginning. However, after about 2 years unfortnately they all have had sticky calipers resulting in brake drag and leaking, leading to squeeky brakes and slip.BTW some of these were on bike I purchased, I would not have continued buying them...
Cryptor
Reviewed in the United States on March 21, 2024
The box was crushed and the parts were loose in the crushed box. The brake pad spacer looked used with grease. It appears to be working but I am worried about longevity.
erikb
Reviewed in Canada on December 5, 2023
Bought these on sale for a great price, they were apparently damaged in shipping process and would not send me replacements at the same price . Sounds pretty shady to me .
Marx Opinion
Reviewed in the United States on December 18, 2023
4 Pistons are the way to go. Only a slight weight penalty over 2 pistons, but the stopping power is incredible. Easy to bleed and just plain work.
Bryan M
Reviewed in the United States on November 19, 2023
This is an OEM Shimano XT brake caliper and N03A resin pads with cooling fins. It’s a great brake setup. Beware, the picture shows a banjo fitting. This is not included. Although it does contain the proper mounting screw for the fitting. Overall, very happy with the performance of these brakes once I ordered the banjo fitting I needed.
Jason Price
Reviewed in the United States on October 13, 2023
Purchased to replace a XT 2 piston caliper that was previously installed. So lever and hose were already in place. Very happy, the brakes stop quick and have a great feel to them. Had evertyhing in the box to install, including proper screw for banjo fitting, new mounting screws etc.It did take a while to bleed. Had to remove caliper and turn every which way to get the air out, but thats not an issue with the product, but rather just an issue with a caliper that is bone dry to start with.
dust to dust
Reviewed in Japan on December 20, 2020
信頼性は抜群ですねピストンのシールがお亡くなりになったBR-M755から更新したのでレバーはBL-M755のままレバーの遊びが嫌いなのでディスク挟まない状態で握りギリギリまでパッド寄せてますが新品はシールの動きもよくコントロールしやすく満足してますできればBR-M755の様なひと手間かけたキャリパー側面の面取りがあるといいなと思いました見た目がおとなしく目立たないので満足度は相対的に下がってしまうのです