Key Features: Legendary tyre, multiple winner of the XC World Cup with the updated version,Fast rolling \"square\" efficient profile,\"Made to measure\" RR Enduro or XC compound tyres,Gives performance, grip and high-quality fast rolling,Ideally suited for dry and slightly loose XC and Enduro terrain,. 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 XC (RRxc), specifically tuned rubber durometers to promote low rolling resistance and increase grip,Weight: 860g, ETRTO Size: 54-622.