Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:700x42 or on your daily commute

or on your daily commute

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

BOTTOM BRACKETSealed Cartridge Bearing

SCS coating on the entire suit increases the hydrophobic properties (think more speed) and makes the neoprene more durable

Challenge Gravel Grinder Race Tire - Tubeless, Folding, Black Size:700x42 or on your daily commuteIntended 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