Shimano dura ace 7900 c35 tubular wheelsetshimano dura ace wheelsets are focused on speed new rim profiles yield substantial weight savings while maintaining the aerodynamic shapes dura ace wheels are race tested at the highest levels of professional cycling to ensure the highest possible levels of performance and quality features high modulus carbon rim easy bearing adjust system increased axial rigidity with over size a7075 alloy axle double butted blade alloy axle for lighter weight and aer