OB-R508D：carbon Road bike frame

OB-R507D Latest Carbon Road BikeFrame， Racing Bike Frame, Aero Bike Frame

OB-R505T：Carbon Time Trial Frame， TT Bike Frame，Triathlon Bike Frame

OB-R501D：Carbon Road BikeFrame， Racing Bike Frame, Aero Bike Frame

OB-R502D： Light weight carbon road bike frame, racing bike frame

OB-R504D：Super light carbon bike frame，racing bike Frame