VSR Aerobike using high modulus carbon fiber reach light weight and stiffness. Integration Headtube including aerodynamics topcap and changeable cable inlets let wind flow more smooth. Asymmetric bottom bracket with extra tube volume in order to achieve best stiffness to weight and paddling force transfer. Slim blade seatstay without traditional rear brake bridge provide not only comfort but also good aerodynamics. Two options brake system in one frame, Shimano direct mount or DISC brake with changeable integration dropout suit for 130 mm or 135 mm hub. DARE innovate many unique elements on VSR let rider getting faster, stable and safety.