Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:700x42 the power savings start at

the power savings start at 40%

◆ For Use with Caliper or Canti-brakes◆ For Use With 19

The Disc version of the Team35 brings a semi-aero wheelset to the latest generation of disc brake-equipped bikes

which improves power

Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:700x42 the power savings start atIntended 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