Derived from top-level AMA Supercross and Motocross racing.

Superior grip in a wider variety of terrain from new block-within-a-block Progressive Cornering Block Technology (PCBT).
Block-In-A-Block rear knob design offers more progressive cornering action and aids in slide control.
Enhanced handling and improved knob durability via more flex, and less knob tearing through recess carcass design.
Front knob design, construction and pattern are optimized to work in one direction, which provides advantages in feel and traction