... steel and painting, arogn-arc welding or co2 welding*.Rim: plastic, aluminium alloy, steel and painting*.Handle bar and stem: ... rubber*.Chainwheel and crank: CP/ED*.Mudguard: steel or plastic*.Basket: steel or plastic*.Color: red, black, pink, yellow, green, purple ... or any colors you like*.Attachments: basket, helmet, mirror, bag, flag, ...