challenge-gravel-grinder-pro-tire-700-x-33-tubular-black-tan-handmade-tubeless
challenge-gravel-grinder-pro-tire-700-x-33-tubular-black-tan-handmade-tubeless, Intended 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 roughShoulder tread is more aggressive for corner confidence and additional controlThe Gravel Grinder is ideal for hardpack, gravel, sand, loose, and rocky terrains