Shimano Deore XT BL-T8100 + BR-M8120 Disc Brake

The SHIMANO DEORE XT T8100 hydraulic disc brake 3-finger lever is longer and is compatible with I-SPEC II mounting. Compatible with 4-piston caliper, the BL-T8100 lever offers greater braking power and intuitive modulation for E-Trekking bikes. The SHIMANO DEORE XT M8120 brake caliper offers constant and reliable braking performance in all conditions. The 4-piston disc brake caliper offers great control and instills confidence on descents.

Lever characteristics

• Better ergonomics & easier control.
• Compatible with 4-piston caliper for greater braking power, especially for E-TREKKING bikes.
• Lever size: 3 fingers.
• Actual weight: 121 g.

Caliper characteristics

• Pistons: 4.
• Faster retraction of the pistons.
• High braking power offers greater safety and control on descents.
• Reduces disc brake rotor oscillation noise and increases braking power by 10%.
• Fitting: banjo.
• Fixing screw: 5 mm.
• Braking fluid: Shimano mineral oil.
• Pre-installed pads: vented organic N03A.
• Actual weight: 168 g.

Technologies

4-Piston

The disc braking system with a caliper with two opposed pistons of different diameters is characterized by the presence of pistons of different sizes in the front and rear. The system adopts a power transfer mode whereby the brake rotor is pressed by the smaller piston at the mouth of the disc seat and also by the larger, more powerful piston at the rear. This prevents jerking movement and significantly reduces noise. Furthermore, the 4-piston caliper guarantees a greater contact surface, keeping the dimensions compact, while the efficient positioning of the pads is adjusted to the extent necessary to stabilize the pressure. Use combined with the ServoWave lever provides an impressive 50% increase in braking power compared to the previous model.

Ice Technologies

Incorrect configuration of the disc brake rotor and pads when braking on a long descent, for example, has a negative impact on brake performance. Shimano has adopted the Ice Technologies disc brake rotor and pads to obtain a cooling technology capable of guaranteeing constant performance. The coated disc brake rotor blade, featuring 3-layer sandwich construction of stainless steel, aluminum and stainless steel, ensures better heat dispersion (400˚C to 300˚C surface temperature). The cooling fin for the pad guarantees less wear, less noise, less loss of efficiency and greater lightness.

I-Spec EV

I-Spec EV creates a clean, optimized cockpit that allows for greater focus and greater comfort for a wide range of riders.

Advantages and benefits

• The wider adjustment range allows cyclists of different styles, preferences and body sizes to find the optimal lever and control position.
• Ergonomic design, quicker lever access and smooth operation improve riding comfort and concentration.

I-Spec EV increases brake lever stiffness by moving the clamp inward to create an additional contact point between the handlebar and lever. This additional support greatly increases bike control and brake response, while maintaining a gap between the clamp and the support point for other accessories to be mounted on the handlebars.