http://www.sgbmountainbike.com/road-bike/Wholesale Road Bike This product contains ce certification, quality inspection certification, Unit weight: 17.5 kg Product volume: 134.0 cm * 20.0 cm * 72.0 cm Wheel size: 24 inches, 26 inches, 27.5 inches, 29 inches, width, 2.125, 2.35 Optional speed: 21 speed, 24 speed, 27 speed, 30 speed, 33 speed, Rim type: spoke wheel, spray paint can be customized logo, spray paint inside stick Material: Aluminum alloy car Frame structure: whole car Whether to fold; No Propelling method: chain Brake system: dual disc brakes Pedal type: ordinary pedal, Yonghua ball semi-aluminum pedal Frame type: tailless frame Suitable height: 130-185cm Suitable weight: 鈮?50kg Suitable for people: teenagers and adults Optional configuration: imitation Shimano gearbox, original Shimano gearbox, Shimano TX-30 front and rear dials, original Shimano gears, internal wiring, hydraulic brakes, aluminum alloy spoke wheels, aluminum alloy handlebars Suitable for terrain: mountain, road Optional tires: kenda tires, Magis tires, ergonomic saddles, Jiushunda spinner hubs, 30 knife laps Kompass tires, dual-brake small brake levers, high-pressure brakes, smart brakes, Boli rear disc brakes, BB5 BMW gray three-level positioning chainrings Color: titanium silver, white red, white black, black red, white blue Model: road bike b20Wholesale Road Bike website:http://www.sgbmountainbike.com/road-bike/