Designed after the Powerblock, but with thicker sidewalls, and new knurled surface. This is for those of you who have had a little bad luck with the thinner structure of the Powerblock.

S-Spec tires are lightweight folding tires with APP All-Purpose Rubber Compound.65PSI Max

Weight:
20×2.125″: 19.22oz/545g
20×2.25″: 21.16oz/600g