Shimano SLX BR-M7120 / BR-M7100 Disc Brake Set J-Kit - black/set (front+rear)

Shimano SLX BR-M7120 / BR-M7100 Disc Brake Set J-Kit

Item number: 72010

SLX BR-M7120 / BR-M7100 disc brake set from Shimano - the powerful brake duo

With the SLX BR-M7120 / BR-M7100 disc brake in a set you get a bundle of a four-piston brake for front and a two-piston brake for rear. Extra brake power on the front wheel is combined with a powerful but much lighter disc brake on the rear wheel. Both brake callipers feature a fast, simple connection system. The BL-M7100 brake levers have a new design that increases stiffness and provides more direct feedback and braking performance. Of course they are equipped with Shimano Servo Wave technology. With a shorter empty travel, more power is available without a long reaction time.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.


SLX M7100
All Mountain, Enduro, Cross Country
hydraulic, 4 pistons (front), hydraulic, 2 pistons (rear)
mineral oil
Hose Length (Front/Rear):
1000 mm/1700 mm

Technical Information - Caliper:

Caliper Mount:
post mount
resin with cooling fins (front), resin (rear)
Calliper Material:
Piston Material:
Hose Connection:

Technical Information - Lever:

Lever Length:
Adjustment Options:
reach adjust (no tools required)
clamp (split), I-Spec EV
right (side-specific), left (side-specific)
Brake Lever Material:
Brake Lever Housing Material:
Hose Connection:


Mounting Position:
  • front brake caliper: brake lever left
  • rear brake caliper: brake lever right
Brake Rotor:
140 mm, 160 mm, 180 mm, 203 mm, 220 mm (recommended: SM-RT70
organic and sintered; with narrow pad shape; standard and Ice Tech brake pads


Brake Calliper:
  • stable and versatile high-performance brake control
  • front 4 pistons for extremely powerful braking, rear lightweight 2-piston system
  • easy and quick installation
  • painted
  • steel bolts (5 mm)

Brake Lever:
  • stable and versatile high-performance brake control
  • easy and quick installation
  • direct braking power, promotes rider concentration and increases fun
  • optimised lever axis position with additional contact point and revised ergonomics
  • 10% stiffer than M7000 even in heat
  • faster braking with less empty pull
  • flexible, action-optimised cockpit layout thanks to I-Spec EV
  • rotation adjustment angle for compatible shift lever: 20°
  • funnel venting with M5 funnel
  • anodised lever, painted body
  • stainless steel clamp bolts


Servo Wave
Shimano Servo Wave technology optimises the travel of your brake levers. During the braking process, the brake pads are guided quickly to the brake rotor with very short lever travel. The greater part of the lever travel is reserved for the actual braking force. In this way, you can apply your braking power in a more targeted manner and use it more effectively.

I-Spec EV
I-Spec EV describes a variant of the connection between brake lever and shift lever on Shimano MTB derailleurs. This type of mounting allows the shifter to be adjusted both horizontally and vertically in relation to the brake lever, and ensures a tidy cockpit by reducing the number of clamps required. Compared to I-Spec and I-Spec II, I-Spec EV offers a much wider adjustment range. 14 mm adjustment range the longitudinal direction and up to 60° rotation allow an optimal ergonomic adjustment to your riding style, your sitting position and your anatomy.

One-Way Bleeding
One Way Bleeding is a technique used on Shimano calipers that facilitates brake bleeding. The hose routing has been optimised so that no air bubbles remain in the brake calliper. In combination with the funnel, the brake can be bled cleanly and easily.

J-Kit is a simple line connection system for hydraulic brakes from Shimano, so that you can install your brakes quickly and easily. The brake hose does not come connected to the brake to facilitate routing of the hose in the frame. The brake hose is already filled with oil in the J-Kit and sealed with a thin membrane. There is a small pin in the J-Kit brake lever that pierces this diaphragm during assembly to allow oil to flow.

Manufacturer Number:

I-M7120JLFXSA100 + I-M7100JRRXRA170


  • 1 x Shimano SLX BR-M7120 + BL-M7100 disc brake, front
  • 1 x Shimano SLX BR-M7100 + BL-M7100 disc brake, rear
  • 1 x Shimano SM-BH90-SBM brake hose, 1000 mm (front)
  • 1 x Shimano SM-BH90-SBM brake hose, 1700 mm (rear)
  • 1 x pair Shimano brake pads, front
  • 1 x pair Shimano brake pads, rear
  • 2 x inserts
  • 4 x calliper bolts
  • 2 x olives (assembled)
  • ready for installation, filled, bleeding is recommended after installation

Order Together:

  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.86 / 5.00


  • black/set (front+rear), in stock

Customer Reviews (4)


Customer Reviews (4)


Give us your opinion on this product.

by Oskar S. on 09.01.2024
verified purchase
item: black/set (front+rear)

Wie Shimano gewöhnt Top. Entlüften und Installation sehr leicht. Super Haptik. An meinem Canyon Stoic reicht die Bremspower auch vollkommen.

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by Jeremy G. on 21.04.2022
verified purchase
item: black/set (front+rear)

Top, qualité Shimano, même freinage que les XT le prix en moins et un look bleuté très sympa

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by Victor Manuel D. on 31.03.2022
verified purchase
item: black/set (front+rear)

envio rapido, producto de buena calidad, exacto a la descripion

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by Maurice M. on 07.01.2021
verified purchase
item: black/set (front+rear)

Bremsen sind schnell angekommen, wurden schnell verbaut und sehen top aus.

Kräftige Bremse und sehr wartungsarm.

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