Maxxis high roller ii mtb tyre 3c tr ddthis high roller ii mtb tyre from maxxis has an open and aggressive tread design which provides exceptional soil penetration and mud clearing ability the square profile gives a solid dependable feel across the knobs improved braking tractionthe modified knobs on the shoulder and centre mean you get improved braking performance and traction on hard surfaces when gravity starts to pull you downhill you can depend on the high roller ii tyre to keep