Maxxis high roller dh tyre dual plythe open and aggressive tread design of the maxxis high roller dh tyre dual ply means that it provides excellent soil penetration and mud clearing ability a square profile across the knobs provides a solid consistent feel it also features modified knobs on the shoulder and centre areas which drastically improve braking performance and traction on hard surfaces when gravity is pulling you downhill rely on this tyre to keep you upright double ply casing