Shimano XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit

Item number: 81838

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to the delivery destination: USA

black/set (front+rear)
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XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
XT BR-M8120+ BL-T8100 Disc Brake Set J-Kit - black/set (front+rear)
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The Shimano XT BR-M8120 disc brake set with BL-T8100 3-finger brake levers

This version of the Shimano BR-M8120 XT disc brake set, consisting of front and rear brakes, comes with two BL-T8100 3-finger brake levers, which impress with very good operability and braking dosage. They are compatible with I-Spec II shifters, which can be installed on the same mount to save space. The handle width can be adjusted without tools. The BR-M8120 are four-piston calipers specifically designed for enduro and trail riding, featuring excellent brake control and a simple connection system. That way, you can give your full attention to the challenges of the terrain. Organic brake pads with cooling fins are also supplied.


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 - Calliper:

Calliper Mount: post mount
Pistons: 4
Pads: N03A resin with cooling fins
Design: 2-piece
Calliper Material: aluminium
Hose Connection: banjo

Technical Information - Lever:

Lever Length: 3-finger
Adjustment Options: reach adjust (no tools required)
Installation: clamp (split), I-Spec II
Design: right (side-specific), left (side-specific)
Brake Lever Material: aluminium
Brake Lever Housing Material: aluminium
Hose Connection: banjo


Brake Caliper:
- excellent brake control helps you to focus on the trail
- extremely powerful braking for more confidence and downhill control
- less brake disc noise and 10 % more braking power than M8000
- simple and fast set-up
- ceramic piston
- recommended brake rotor: RT-MT800
- IS mounting and PM non direct mounting possible with adapter
- painted
- steel mounting screws (5 mm)

Brake Lever:
- longer 3-finger lever
- I-Spec II compatible
- greater braking power and intuitive modulation, originally developed for touring E-bikes
- improved ergonomics and control
- funnel bleeding
- anodised lever, painted body
- stainless steel clamp bolts


One Way Bleeding is a technique used on the brake calliper that makes it easier to bleed the brake. 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.

IceTechnologies provide fast heat dissipation on the disc brake. Oversized brake pistons (often made of ceramic) are used, which transfer braking power directly to the pad without increasing heat. This keeps performance constant and results in high efficiency. Ice-Tech brake pads are equipped with cooling fins made of aluminium. The brake disc (not included here) is constructed in a sandwich technique, in which stainless steel encloses an aluminium core. The stainless steel on both flanks ensures long durability, the aluminium allows heat dissipation.

I-Spec II
I-Spec II describes a variant of the connection between brake lever and shifter in MTB drivetrains. This type of mounting allows the shifter to be adjusted both horizontally and vertically in relation to the brake lever, and keeps the cockpit tidy by reducing the number of clamps required. With I-Spec II, there is 12 mm of adjustment travel in the longitudinal direction and up to 15° of available rotation - for optimal ergonomic adaptation to your riding style, your seat position and your anatomy.

J-Kit is a simple hose connection system for hydraulic brakes on internally routed hoses so that you can install your brake quickly and easily. The brake hose does not come connected to the brake to facilitate the 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 Part Number:

I-M81201JLFPSA100 + I-M81201JRRXSA170


- 2 x Shimano XT BR-M8120 + BL-T8100 disc brakes, front & rear
- 1 x Shimano SM-BH90-SBM brake hose, 1000 mm (front)
- 1 x Shimano SM-BH90-SBM brake hose, 1700 mm (rear)
- 2 pair of Shimano N03A brake pads
- 2 x inserts
- 4 x calliper bolts
- 2 x olives (assembled)
- mount ready, filled, bleeding is recommended

Order Together:

- TL-BH61 tool for insert installation
- recommended brake rotor: RT-MT800
- Adapter for IS mounting and PM non-direct mounting


in stock 2 to 7 days up to 10 days Out of stock inform me
  • black/set (front+rear)

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