Here’s one side of our 2-piece rear Racing 4 caliper.
Staggered piston sizes for even pad surface wear. Plus the surface area is correctly-sized for that non-mushy pedal feel.
Inner dust seals keep the dust and debris out and the RF-650 fluid in.
Here’s one side of our 2-piece rear Racing 4 caliper. 
Staggered piston sizes for even pad surface wear. Plus the surface area is correctly-sized for that non-mushy pedal feel.
Inner dust seals keep the dust and debris out and the RF-650 fluid in.