The Gravine is the most aggressive tread of the Challenge line-up, suitable for more severe terrain. Tread depth is increased for greater braking traction and enhanced grip in loose gravel and rockier terrain. The wide-spaced knobs encourage mud and dirt shedding and find traction when low-profile tread patterns are overpowered.
For higher speeds, lower pressures and rougher terrain, Challenge has developed a new technology applied to handmade construction. The new XP series adds additional sidewall and tread protection Xtra Protection (XP)for greater durability.
This Challenge TLR model ishookless rim compatible.
