R-Line Race Caliper (air-cooled) Click to learn about the Powerbrake R-Line Race Caliper (air-cooled) Heavy duty 6-piston off road race caliper Standard air-cooling R-Line Race Caliper (liquid-cooled) Click to learn about the Powerbrake R-Line Race Caliper (liquid-cooled) Heavy duty 6-piston off road race caliper Advanced liquid-cooling R-Line 320x33mm Race Discs (FIA T1 class) Click to learn about the Powerbrake R-Line 320x32mm Race Discs (FIA T1 class) 68-vane 320x33mm off road race discs Billet disc hats and mounting / drive hardware R-Line Race Pads Click to learn about the Powerbrake Race Pads 3 x compounds to cover all off road race applications Unmatched brake performance and pad wear life