Brembo Cast aluminum Supermoto Brake Caliper. This Brembo caliper is the most popular in use by racers and high power street riders. The 1502X is a full blown 4-Piston, 4-Pad, radial mounted caliper designed for maximum longevity, maximum braking power and maximum cooling. Looks cool too. Caliper is sold by itself and radial mounted with use of aluminum bracket sold separately or you can buy the caliper together as a complete kit. Kit includes caliper and brake pads.