TRP Spyre Flat Mount Mechanical Disc BrakesThe TRP Spyre Flat Mount Mechanical Disc Brakes are among the most trusted cable actuated disc brake calipers on the market. Featuring a dual piston design, the Spyre delivers even pressure from both sides of the rotor, resulting in more consistent braking power, improved modulation, and less rotor wear compared to single piston brakes. Designed for road, gravel, and cyclocross bikes, the flat mount Spyre calipers are lightweight, reliable, and easy