GRIFO of Italian handmade tire maker Challenge.
It is an all-round tire that adapts to any road surface condition by combining a center knob with high grip and a dot pattern on the side that supports high-speed corners. It boasts unrivaled speed in hard mud, dry mud, wet grass, paved roads, etc., but of course it also guarantees grip on sandy areas.
An open tublar is a clincher tire that is produced in the same process as a handmade tubular tire, and provides a supple ride that is comparable to that of a tubular tire. We recommend using a latex tube.