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.  700c x 33.  Bought but never taken out of the box.  £75 RRP so grab a bargain!  Two tyres pictured but this is for sale of 1 tyre only.