The XT BR-M8020 disc brake set by Shimano - double the number of pistons
Shimano has developed the XT BR-M8020 4-piston disc brake set (front + rear) to give trail riders and E-MTB bikers more brake power. It has 20% more braking force than a BR-M8000 2-piston brake set. The calipers come in combination with the proven I-Spec II compatible XT BL-M8000 Servo Wave brake levers, allowing more tuning options for aggressive trail riding or E-MTB applications. Of course, the BR-M8020 brake caliper is also equipped with Ice-Tech and One Way Bleeding technology.
Guidelines for the parts replacement of E-bikes:
Please follow the Guidelines for parts replacement of CE marked E-bikes / pedelecs with pedal assist.
Series: Deore XT M8000
Application: Trail, All Mountain, Enduro, E-Bike
Type: hydraulic, 4 pistons
Actuation: mineral oil
Hose Length (Front/Rear): 1000 mm / 1700 mm
Technical Information - Caliper:
Caliper Mount: post mount
Pads: H01A metal with cooling fins (H03A resin, D01S / D03S resin H03C metal optional)
Caliper Material: aluminium
Hose Connection: banjo
Technical Information - Lever:
Lever Length: 2-finger
Adjustment Options: reach adjust (no tools required), free stroke
Mount: clamp (split), I-Spec II
Design: right (side-specific), left (side-specific)
Brake Lever Material: aluminium
Brake Lever Housing Material: aluminium
Hose Connection: straight
- 20 % more brake power than BR-M8000
- especially for aggressive Trail and E-MTB riding
- IS mount with adapter possible
- 4 ceramic pistons
- recommended brake rotor: RT-MT800, SM-RT86, SM-RT99, RT-EM810, RT-EM910
- painted brake caliper, steel bolts (5 mm)
- more stable braking performance under different conditions without changing the lever position
- slim, durable and tidy design of the main cylinder with I-Spec II
- anodised lever, painted body, stainless steel clamp bolt
When you pull a Servo Wave brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control.
The XT M8000 levers are compatible with the I-Spec II system, that allows to mount the shift and brake lever on the handlebar with only a clamp. This gives more freedom in the cockpit-design, save weight and improves the ergonomics thanks to diverse adjustment possibilities. Simple structure with narrow brake lever clamp band. More space on handle bar and cleaner appearance. Max. adjustment range vertical: 15°, max. adjustment range horizontal: 12 mm. I-Spec II brakes are not compatible with I-Spec- and I-Spec B shifters (and vice versa).
One-Way-Bleeding was developed for quick and easy prevention of air in Shimano's hydraulic system. They have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system.
One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.
Brake fading during prolonged uninterrupted operation, e.g. downhill, impairs braking performance. Shimano has introduced brake discs and pads with Ice-Tech technology to create a cooling technology for consistently high braking performance. The brake rotor has a three-layer stainless steel sandwich structure on the outside around an aluminium core. It radiates heat better and reduces a surface temperature from 400° C to 300° C, for example. The brake pads also have optional cooling fins. The design of the rotor in combination with the cooling fins results in a longer service life of the pads, less braking noise, less fading and a lower weight.
XTR, Saint, Deore XT, SLX, Zee, Deore LX calipers are bundled with Ice Technology pistons in order to achieve optimized lightweight, high rigidity and heat dissipation. Oversized pistons transfer hydraulic power directly to the brake pad, and ceramic material is used to avoid heat transfer for constant stable braking, providing efficient stopping power transfer without loss.
Manufacturer Part Number:
I-M80002KLFPSA100 + I-M80002KRRXSA170
- 2 x Shimano XT BR-M8020 + BL-M8000 disc brakes, front and rear
- 1 x Shimano SM-BH90-SBLS brake hose, 1000 mm (front)
- 1 x Shimano SM-BH90-SBLS brake hose, 1700 mm (rear)
- 2 pair of Shimano H01A brake pads
- 2 x insert
- 2 x olives
- 4 x caliper bolts
- 1 x bleed block (front)
- 1 x Shimano TL-BH61 tool, 2-piece (front)
- 2 x snap ring
- not incl. rotor
- not incl. adapter
- mount ready (filled & bled)