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  • Shimano XT 4-Pot Disc Brake M8120 Rear

Shimano's 4-piston Saint, Zee, and XT disc brakes have long been celebrated for their exceptional stopping power. Now, the Deore XT M8120 Brakes elevate this performance to new heights, delivering unparalleled stopping power that sets a new standard.

By employing 4 opposed pistons with 2 different diameters, pad wear is minimized, and control is maximized. The calliper's 2-piece construction ensures both lightweight and exceptional stiffness, ensuring that every bit of generated power effectively slows you down when needed, making for quick and precise stops!

The XT M8120 4-pot disc brakes are excellent value for money.

Features:

  • Official Shimano disc brake - supplied fully boxed
  • UK spec brakes - left-hand rear / right-hand front
  • Fully bled lever and calliper comes without adapters or rotors giving you the freedom to customise to suite your bike
  • Short stroke Servo-Wave mechanism for quick pad engagement and more power
  • 4 oversized pistons optimized for heat insulation, lightweight and stiffness
  • Using Ice Tech alloy fin pads further improving heat radiation performance
  • Recommended for use with Ice Tech rotors for optimum braking performance in a choice of 140, 160, 180, 203 and 220mm
  • Lightweight forged calliper design that increases rigidity and reduces weight
  • Forged alloy brake lever for optimum strength and reliability
  • Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid
  • Shim-less mounting system allows for quick setting up
  • Brake lever features reach and free stroke adjustment
  • Shimano I-spec-EV compatible so you can mount your Shimano shifter direct to the lever if you wish.

 

Included:

  • The boxed kit also contains sintered pads, plus spare olives and insert should you wish to adjust the length of the cuttable hoses
  • Hinged clamp for quick installation

 

Note: The brakes are bled and ready for installation. Please note that the front and rear brake hose does not come attached, but it's a straightforward process to fit the hose. It simply requires the hose to be tightened into the lever after the seal has been removed. 

4-Pot Disc Brake M8120

41 Reviews41 total reviews

SKU: M8120BLR / Barcode: 4550170447335
Shimano's 4-piston Saint, Zee, and XT disc brakes have long been celebrated for their exceptional stopping power. Now, the Deore XT M8120 Brakes elevate this performance to new heights, delivering Read more
Sale price £112.95 Regular price RRP £189.99 SAVE 41%
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In stock

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Shimano's 4-piston Saint, Zee, and XT disc brakes have long been celebrated for their exceptional stopping power. Now, the Deore XT M8120 Brakes elevate this performance to new heights, delivering unparalleled stopping power that sets a new standard.

By employing 4 opposed pistons with 2 different diameters, pad wear is minimized, and control is maximized. The calliper's 2-piece construction ensures both lightweight and exceptional stiffness, ensuring that every bit of generated power effectively slows you down when needed, making for quick and precise stops!

The XT M8120 4-pot disc brakes are excellent value for money.

Features:

  • Official Shimano disc brake - supplied fully boxed
  • UK spec brakes - left-hand rear / right-hand front
  • Fully bled lever and calliper comes without adapters or rotors giving you the freedom to customise to suite your bike
  • Short stroke Servo-Wave mechanism for quick pad engagement and more power
  • 4 oversized pistons optimized for heat insulation, lightweight and stiffness
  • Using Ice Tech alloy fin pads further improving heat radiation performance
  • Recommended for use with Ice Tech rotors for optimum braking performance in a choice of 140, 160, 180, 203 and 220mm
  • Lightweight forged calliper design that increases rigidity and reduces weight
  • Forged alloy brake lever for optimum strength and reliability
  • Mineral oil brake fluid is non-corrosive and less hazardous than conventional hydraulic brake fluid
  • Shim-less mounting system allows for quick setting up
  • Brake lever features reach and free stroke adjustment
  • Shimano I-spec-EV compatible so you can mount your Shimano shifter direct to the lever if you wish.

 

Included:

  • The boxed kit also contains sintered pads, plus spare olives and insert should you wish to adjust the length of the cuttable hoses
  • Hinged clamp for quick installation

 

Note: The brakes are bled and ready for installation. Please note that the front and rear brake hose does not come attached, but it's a straightforward process to fit the hose. It simply requires the hose to be tightened into the lever after the seal has been removed. 

Customer Reviews

4.9
Rated 4.9 out of 5 stars
Based on 41 reviews
Total 5 star reviews: 37 Total 4 star reviews: 2 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 0
95%would recommend this product
Slide 1 selected
Customers Talked About
41 reviews
  • SR
    Stefan R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Best price I could find.

    The brake comes with the hose attached to the caliper and this is prefilled with fluid and capped off at the hose end. The lever is also prefilled and capped off. This allows you to shorten the hose if required, when fitting. Be mindful that you will need to do a quick lever bleed when fitted, so make sure you have the correct mineral fluid and bleed funnel. I'm running Uberbike E-Matrix pads in mine and they have Monster stopping power!

  • JP
    John P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    Powerful!

    The paperwork inside the box advises that these are very powerful, suitable for Downhill use, and as such are not suitable for road use.

    They come supplied with a pair of BP-N04C-MF Metal with fin pads, and a reminder of how to bed them in.

    The N04Cs need to come up to temperature to get their full performance, but holy cow! One finger on the lever is enough to bring the back wheel of my 120kg e-bike & rider off the ground. Its not hard to imagine what will happen if you need to hit the brakes unexpectedly in traffic...

    I tried a pair of part-worn BP-D03S-RX Resin pads, and they were much calmer, but a bit squeaky.

    I'm now running with a pair of BP-N03A-RF Resin pads with fins. Plenty of power, silent running, works from cold, and a progressive bite.

    I'll keep the N04Cs for the bike park.

    The M8120 calipers use a screw-in pin instead of a split pin, so its easy to swap pads in and out.

    I think these brakes are great for Downhill or heavy ebikes, but probably overkill for normal MTBs with light riders.

  • AM
    Andrew M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Look good, but not installed yet

    Look good, but not installed yet

  • JH
    Josh H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    The best

    Hands down the best brake I’ve ridden

  • JH
    Josh H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Great power

    I’ve always been a fan of shimano brakes but this was my first time installing and riding 4 pot XT. I really love the feel, on the leaver bladed the bite point does wonder slightly and it was stubborn to bleed but worth it for the snappy shimano brake

    Feel

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