Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:70x38 Wider wheels and tires are

Wider wheels and tires are faster aerodynamically

Features: Adhesive backing only

and city riding

crafted from 6066 series aluminum

if you want your paint finish to gleam like new

Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:70x38 Wider wheels and tires areIntended for all around or dirt gravel roads, this tire comes equipped with a file tread center and a knobbier shoulder tread. File tread center pattern offers low rolling resistance on smoother terrain and increased grip when the road gets rough Shoulder tread is more aggressive for corner confidence and additional control The Gravel Grinder is ideal for hardpack, gravel, sand, loose, and rocky terrains