Shimano Deore XT (BL-M8100-L + BR-M8120) Hydraulic Disc Brake – Front
Type: Hydraulic disc brake set
Position: Front (left-hand lever)
The Shimano Deore XT front brake combines the BL-M8100 lever with the BR-M8120 four-piston caliper, delivering high braking power, excellent modulation, and consistent performance for trail, enduro, and all-mountain riding. It comes pre-assembled with an 850 mm hydraulic hose for easier installation.
Key features
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Shimano Deore XT M8100 series
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Front hydraulic disc brake set
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BL-M8100 brake lever
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BR-M8120 4-piston caliper
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High braking power and excellent control
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Pre-installed 850 mm hydraulic hose
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Shimano mineral oil system
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Servo Wave technology for improved modulation
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Tool-free lever reach adjustment
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I-SPEC EV compatible
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Compatible with finned brake pads
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OEM version (no retail box)
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Supplied without rotor
Technical specifications
| Specification | Details |
|---|
| Brand | Shimano |
| Series | Deore XT |
| Lever | BL-M8100 |
| Caliper | BR-M8120 |
| Position | Front (left-hand) |
| Brake type | Hydraulic disc brake |
| Pistons | 4 |
| Fluid | Shimano mineral oil |
| Hose | SM-BH90-SBM |
| Hose length | 850 mm |
| Mount type | Post Mount |
| Pad compatibility | ICE TECHNOLOGIES |
| Rotor compatibility | 140–220 mm |
| Color | Black |
| Packaging | OEM |
Compatibility
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MTB bikes
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Trail bikes
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Enduro bikes
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All-mountain bikes
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Shimano Post Mount frames
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Shimano ICE TECHNOLOGIES rotors and pads
In practice
The BL-M8100 + BR-M8120 setup is one of Shimano’s most capable MTB braking systems. The four-piston caliper provides significantly higher braking force and improved heat management compared to two-piston systems, while Servo Wave technology ensures fast pad engagement and excellent modulation. It is ideal for steep descents, technical terrain, and high-speed off-road riding.
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