High Carbon Steel Frame Fixed Gear Bikes Removable DIY Bike 52cm Promotion 700cc Tire BicycleSpecification:Brand: KOLUSSIMaterial: High Carbon SteelColor: Black、WhiteWeight: 160kgRemovable: YesSize: 52cmBrake brake system: Double V Configure Details:          Model       TA119           Frame       The second generation seamless steel frame adjustable after hook 52cm           Handlebar       Aluminum alloy           Stem       Aluminum alloy、Enhanced           Grips       Colorful fixed gear bikes grips           Cushion       High elastic rivet fixed gear bikes cushion           Seat post       Aluminum alloy 25.4*300           Drum       Fixed gear bikes professional drum           Chain       Steel KMC           Front wheel       Aluminum alloy 40mm broadsword ring 32H           Rear wheel       Aluminum alloy 40mm broadsword ring 32H           Pedal       Aluminum alloy           Dental plate       Aluminum alloy split dental plate 44T           Tire       700cc*23cc、COMPASS           Note:Due to different batches、 some non-critical parts of the change will be used to replace the same grade or higher grade parts、 hope you can understand、thank you so much!   Package includes:1 x Fixed gear bikes