Rear tread pattern provides maximum center tread traction over a variety of surfaces.
Stiffer rear sidewall provides for less distortion on landing for better grip, less deflection and kickback and overall improved stability.
Front tread has better self-cleaning for consistent traction in wet, muddy conditions as well as a more aggressive shoulder knob for more confident cornering and braking.
Smaller front diameter makes for a stiffer sidewall for quicker turn in response.