20" 406 Wheels Pair Q-release Cassette type freehub, Shimano/Sram etc. compatible. Doublewall WTB Grey rims with Silver stainless steel spokes, 28 Front 28 Rear. Rear Q-release Hub Silver suit 8/9/10 speed, Front Q-release Hub Silver. Hub Width 130mm Rear, 74mm Front. Q-release Skewers not supplied.