Key Features: Delivers excellent lightweight performance and Grip,Sheds mud from the sides thanks to block of v-shaped knobs,The size of the lateral knobs aries to improve grip at varying lean angles,Progressive tread pattern and knob shaped,Available in RR xc or Enduro compound,Ideal for all types of terrain and conditions,. Specification: 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,ETRTO Size: 57-622.