Dahon 20" 406 Wheels Pair Q-release Cassette type freehub, Shimano/Sram etc. compatible. Please Note Colour Rims: Yellow, Colour Hubs: Black Front and Black Rear, Colour Spokes: Black SS. Dahon Yellow doublewall rims with Black stainless steel spokes, 20 Front 28 Rear. Rear Q-release Hub Black suit 8/9/10 speed, Front Q-release Hub Black. Hub Width 130mm Rear, 74mm Front. Rim Tapes supplied. Q-Rellease Skewers are NOT supplied, use your original skewers. Suitable for Tyre Width up to 20 x 1.75"