SPEEDONE 4 Piston Hydraulic Disc Brake System Performance and Design
Four precision pistons distribute braking force evenly across each rotor, eliminating the pad fade that single and dual-piston systems experience on technical terrain. The powerful 641N braking force arrives through 850mm front and 1600mm rear cable runs, accommodating full-suspension frames and downhill geometry without hydraulic lag. Cooling pads engineered into both brake units shed thermal energy during extended mountain descents, maintaining modulation when entry-speed demands maximum deceleration. Mineral oil hydraulics provide superior thermal stability compared to DOT fluid, resisting vapor lock in high-heat scenarios common to all-mountain and downhill riding. The complete set arrives pre-bled and ready to mount, reducing installation time while ensuring air-free lines for immediate performance.













V***v –
ok
s***h –
They brake good and i hope they last long enough. One problem is that i ordered 4 pairs and got only 3.
r***i –
They are not exactly the ones in the photo, but it’s still fine.
c***r –
Very sticky with 180mm brake discs, causing the tire tread to wear out quickly 😁💪🏻