Geax Goma 29 inch Folding Tire
For the toughest conditions, there is the Geax Goma. Engineered with advanced rubber compounds and a carefully designed tread pattern, the Goma grips tighter and can handle big hits with ease. The Goma is a race tire that really shines in the bumpy, rocky, loose or wet stuff.
I have been using the tires for only about 200miles and the tread is no longer usable on the rear tire. I tend to get about 1000 mile before I switch tired but only 200 on these. They did initially handle very well but seem to be too soft for the desert dirt in the southwest.