Challenge Gravel Grinder Tire

Size: 700C x 38 MM
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Intended for all-around riding, as well as excursions on dirt and gravel roads, the Challenge Gravel Grinder tire comes equipped with a file tread center and a knobbier shoulder tread.

  • Features

    • 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 when the terrain gets soft, muddy or a bit sketchy
    • Ideal for hard-pack dirt, gravel, sand, and loose and rocky terrain


    View all Challenge Road Bike Tires
  • Technical Specs

    Best Use

    Gravel Cycling

    Wheel Size


    Tire Width

    38 millimeters

    Foldable Tires




    Thread Count Casing (tpi)

    120 threads per inch

    Tread Type

    Semi-slick Tread

    Bead Type


    Recommended Pressure (psi)

    32-53 pounds per square inch


    375 grams

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