Wilwood DynaPro Big Brake front brake kits provide the edge of larger diameter brake rotors for conventional non-ABS spindles on machines with big brake stopping power. These kits were developed for locations or applications where dust-booted pistons are appropriate, to provide added protection against track and road-born debris in low temperature ranges or harsh environments. A full range of options for caliper finish and rotor design allows you to individualize style and performance requirements … from the mildest to the wildest.