Bonamici Folding Brake Lever for Brembo Master Cylinders. Produced in Italy from aerospace-grade Magnesium Alloy with an ergonomically correct design to fit comfortable and solid in your hand yet exceptionally light for racing (approx. 30% lighter than aluminum). Crafted to emphasize a connected feeling to the bike during cornering, shifting, and braking with an aerodynamic air-inlet flow hole that prevents activation (or drag) during high speed. Features a 90 degree upward pivoting design to resist breakage in a crash.