Challenge Gravel Grinder Pro Tire

Color: Black/Tan
Size: 700C x 36 MM
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With a fast-rolling diamond center and aggressive shoulder knobs, the hand-built Challenge Gravel Grinder Pro tubeless tire delivers traction and ride quality—even when the terrain turns sketchy.


  • Handmade tire combine many attributes for comfort and low rolling resistance
  • PPS2 is a Puncture Protection System placed between the tread and casing—plus an additional layer inside the casing—to increase puncture resistance
  • Puncture protection is enhanced when combined with the appropriate tubeless sealant (not included)
  • Gravel-specific SuperPoly Corazza Armor casing uses a double SuperPoly layer for durability and stability
  • Ideal for use on hardpack, gravel, loose, sandy or rocky terrains
  • Note: Tire images shown may not reflect size/color/material options available on this page


View all Challenge Gravel Bike Tires

Technical Specs

Best Use

Gravel Cycling

Wheel Size


Tire Width

700C x 36 MM: 36 millimeters

Bead Type




Thread Count Casing (tpi)

260 threads per inch

Tread Type

Semi-slick Tread

Recommended Pressure (psi)

30-50 pounds per square inch



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