Technically, Brembo relies on a four-piston caliper with 18-mm pistons combined with a 9-mm master cylinder. This is complemented by steel-braided lines and 2.3-mm-thick brake rotors, which offer more material for heat absorption compared to many established systems. The goal is to achieve the most consistent performance possible, even during long descents and under high thermal stress. 

A key focus is on adaptability. In addition to lever reach, the pressure point can also be adjusted, as can the lever ratio in several increments. This allows the brake’s characteristics to be varied according to preference and application—from more progressive to direct. The GR-PRO was developed, among other places, in the Downhill World Cup. 

Brembo positions the system in the upper price segment. With the entry of an established motorsports supplier, the range of offerings in the high-end brake market is expanding—and is likely to invigorate competition in this sector. For modern gravity bikes and e-bikes, a more robustly designed braking system is just what the doctor ordered.

brembo.com