Frame: ALLOY KID BIKES Hub: COASTER REAR HUB STEM: ZOOM ALLOY/STEEL STEM Fork: XDS RIGID FORK Crankset: ONE PIECE BB SEAT POST: XDS SEAT POST Tire: BLACK TIRE W/WHITE SIDE Brake: F/V-BRAKE R/COASTER BRAKE SIZE: 14” ; 16”； 20” Rim: XDS ALLOY RIMS