Patent pending design specifically for use on bikes with disc brakesdesigned for use on bikes without threaded eyeletsa lightweight low profile solution for mountain commuting and fitness bikesultra narrow profile improves aerodynamics keeps load closer to center and greatly reduces bag swinghand welded 102mm tubular 6061 t6 alloy constructionfits 26quot and 700c wheelsample space for mtb and hybridtrekking fendersweight 710g 157lbscapacity 50kg 110lbs