Challenge Gravel Grinder Pro Handmade Tubular

Make your mark on the gravel scene with the Gravel Grinder. This tire combines a fast-rolling diamond center with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy. This handmade tubular combines a supple, 260TPI SuperPoly casing with natural rubber tread and a seamless latex inner tube for improved comfort, confident cornering, and quick handing. The latex tube is lighter, thinner, and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve.

Handmade
- Handmade tires combine many attributes to create the most comfortable and lowest rolling resistance tires.

Latex
- Latex tubes are stronger, lighter, super supple, absorb shock, and conform precisely to terrain, reducing rolling resistance.

PPS 2
- The Puncture Protection Strip is a special fabric placed between a tire's tread and casing to increase resistance to punctures. Designed for rough roads and gravel, PPS2 tires have an additional protection layer between the casing and the inner tube.