Challenge Gravel Grinder Clincher Gravel Tire, Black 700C x 38mm relaxedfit Premium Design: Go farther with

Premium Design: Go farther with waterproof full-graim leather

The Boa System provides a perfect fit that locks in power through every pedal stroke

and add a layer of grippy trail traction for good measure

Front Tire: Nimbus II Sport

On the trails

Challenge Gravel Grinder Clincher Gravel Tire, Black 700C x 38mm relaxedfit Premium Design: Go farther withMake 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 clincher with 120TPI nylon casing provides both performance and durability. Includes PPS, a Puncture Protection System placed between the tread and casing to increase resistance to punctures.