Shimano XT BR-M8120 Disc Brake w/ Resin Pads J-Kit

Shimano XT BR-M8120 disc brake - more brake control means more concentration on the trail

The Shimano XT BR-M8120 is a four-piston disc brake with organic brake pads specially designed for Enduro and Trail applications. The brake caliper features excellent brake control and a simple connection system. The I-Spec EV compatible BL-M8100 brake lever is mounted at an angle to provide an additional contact point. This increases stiffness and provides more direct feedback. In addition, Shimano Servo Wave increases braking power: more performance is available with shorter empty travel.

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.

Specifications:

Series:

Deore XT M8100

Application:

Enduro, All Mountain

Type:

hydraulic, 4 pistons

Actuation:

mineral oil

Hose:

SM-BH90-SBM

Hose Length (Front/Rear):

1000 mm/1700 mm

Technical Information - Caliper:

Caliper Mount:

post mount

Pads:

resin with cooling fins

Design:

2-piece

Calliper Material:

aluminium

Piston Material:

Ceramic

Hose Connection:

banjo

Technical Information - Lever:

Lever Length:

2-finger

Adjustment Options:

reach adjust (no tools required), contact point

Mount:

clamp (split), I-Spec EV

Design:

right (side-specific), left (side-specific)

Brake Lever Material:

aluminium

Brake Lever Housing Material:

aluminium

Hose Connection:

straight

Compatibility:

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: RT-MT800)

Pads:

organic and sintered; with narrow pad shape; standard and Ice Tech brake pads

E-Bike:

EP8 EP801, EP8 EP800 for MTB / Touring

Features:

Brake Caliper:

• excellent brake control helps you to focus on the trail
• extremely powerful braking for more self-confidence and downhill control
• less brake rotor noise and 10% more braking power than M8000
• easy and quick installation
• 4 ceramic pistons
• approved for use with transport and cargo bikes
• painted
• steel bolts (5 mm)

Brake Lever:

• optimised lever axis position with additional contact point and revised ergonomics
• flexible, action-optimised cockpit layout thanks to I-Spec EV
• rotation adjustment angle for compatible shift lever: 20°
• 10% stiffer than M8000 even in heat
• faster braking with less empty pull
• funnel venting with M5 funnel
• anodised lever, painted body
• stainless steel clamp bolts

Technology:

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
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 Numbers:

Front:

I-M8120JLFXSA100

Rear:

I-M8120JRRXSA170

Contents:

• 1 x Shimano XT BR-M8120 + BL-M8100 disc brake, front or rear
• 1 x Shimano SM-BH90-SBM brake hose, 1000 mm (front) or 1700 mm (rear)
• 1 x pair Shimano brake pads
• 1 x inserts
• 2 x calliper bolts
• 1 x olives (assembled)
• ready for installation, filled, bleeding is recommended after installation

Order Together:

• Disc Brake Adapter
• TL-BH61 tool for insert installation
• Bleed Block Y-8FF19000