Road Bike Material: carbon fiber Wheel diameter size: 700C Height: 46cm, 48cm, 50cm, 52cm, 54cm Wheel type: spoke wheel, spray paint can be customized logo, spray paint inside stick Frame structure: car as a whole Whether to fold: No Propulsion method: chain Frame type: hard frame Front fork type: resistance rubber (mid-range without damping) Pedal type: ordinary pedal, high lubrication road pedal Ergonomic design: non-slip more grip, lighter weight Brake system: Double V brake Brake type: rear axle Suitable height: 130-185cm Suitable weight: 鈮?50kg Suitable for the crowd: adults Optional: Imitation Shimano gearbox, genuine Shimano gearbox, Shimano front and rear finger dials, original Shimano gears, internal wiring, hydraulic brakes, aluminum alloy wheels, aluminum alloy handlebars Optional speed: 21 speed, 22 speed, 24 speed, 27 speed, 30 speed Suitable terrain: mountain, road Breaking wind racing design: EPS technology Net weight: 8.3kg, pac edging size: 140*20*75CM Frame: Thunder high-modulus carbon fiber/EPS/break wind racing/internal wiring/star lacquer/UV laser wire drawing mark Fork: Xunlei high modulus carbon fiber road hard fork / UV laser markinghttp://www.sgbmountainbike.com/road-bike/