SHIMANO MT501/MT520 4-piston disc brake front wheel | rear wheel

The SHIMANO BL-MT501/BR-MT520 is a robust 4-piston disc brake that you can rely on in any situation. Without a groupset, it already utilises top-class technologies. There are actually no limits to the intended use of this brake, from cross-country and enduro to freeride and heavy eBikes. It also cuts a fine figure on trekking bikes.

The brake calliper with thermally insulated brake pistons and pads works with very low wear and thus generates consistently high braking power with an extended service life. SERVOWAVE technology ensures short lever travel, a fast-responding brake with high modulation. This always improves the control of the bike.

Features

• Braking power through 4-piston
• ServoWave lever
• I-SPEC II
• Lever width adjustment
• OneWay Bleeding

Technologies

SERVOWAVE Action

The SERVOWAVE brake lever takes up a lot of braking travel at the beginning of its movement, so that the pads can be guided to the brake disc with little lever travel. Once the brake pad is applied, the force transmission factor increases rapidly. The larger part of the lever travel is therefore still available to increase the braking force and to provide more targeted braking.

FOUR PISTON

The disc brake system with double-diameter brake caliper design and counter-rotating pistons has pistons of different sizes at the front and rear. The system includes a force transmission system in which the brake disc is pressed by the smaller piston at the entrance to the brake disc mount and also by the stronger, larger piston at the rear. This prevents the brake disc from vibrating and significantly reduces noise.
The four-piston brake caliper increases the contact area with the brake disc, while its size remains compact. The position of the pads is precisely matched to stabilise the pressure. In addition, in combination with the SERVOWAVE brake lever, an incredible 50 % more braking force is achieved than with the previous model. The advanced disc brake system can be adapted to the rider's braking habits and generates a smooth, highly controllable braking force.

I-SPEC II

This mounting system for shift levers offers optimum ergonomics, a tidy look and more space in the cockpit. It is mounted directly on the I-SPEC II-compatible clamp of the brake lever. The trigger can be moved 12 mm to the left or right and its angle can be adjusted by 15°.