Aggressive side knobs offering high grip, Directional profile with high knobs for precise riding and maximum braking performance, A tri-compound Race Ripost Gravity construction that precisely controls tread deformation and increases grip, A 66 TPI Hardskin casing will give you the ability to handle the most difficult terrain,.Key Features: Tubeless Ready (TR), fits tubeless rims with no inner tube and also standard rims with inner tube, Hardskin (HS), textile grid reinforcement, Race Ripost End (RR End), specifically tuned rubber durometers to promote low rolling resistance and increase grip.