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Make your mark in the gravel scene with the Gravel Grinder bicycle tire by Challenge. This tire combines a fast-rolling diamond center with aggressive shoulder knobs that only engage when the terrain gets soft, muddy or a little slippery.
Make your mark in the gravel scene with the Gravel Grinder bicycle tire by Challenge. This tire combines a fast-rolling diamond center with aggressive shoulder knobs that only engage when the terrain gets soft, muddy or a little slippery.
€ 57,90