The Schwalbe G-One RX Pro Tubeless Tire runs a tread built specifically for the terrain the rest of the G-One lineup avoids. Chevron-shaped center lugs keep rolling resistance in check on hardpack, while widely spaced intermediate knobs and paired outer blocks bite into loose rock, mud, and roots once the trail turns technical. That same open spacing sheds mud instead of packing it into the tread, so grip doesn't disappear the moment conditions get sloppy. We stock this tire in 700x55 and 700x60 (29x2. 35in), widths that push into XC mountain bike territory for riders who want maximum control on rough gravel routes. What Our Gearhead(R) Experts Are Saying:"I ran this through a wet, rooty section that's stopped me cold on smoother gravel tires, and the tread kept clearing itself instead of packing up with mud halfway through. That self-cleaning action is what actually kept me moving when the trail turned to soup."