Road Bike Weight Vs Aerodynamics

To take bianchi s range as an example the specialissima lightweight road bike has a claimed frame weight of 780g and the fork is 340g a total of 1 120g. Way back in 2001 bike engineer kraig willett analysed the forces on wheels and concluded. The effect of a bike s weight during acceleration is small and the effect of a wheel s weight is very small.

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Road bike weight vs aerodynamics. Prove this to yourself. If you weigh 90kg and your bike is 7kg with the wheelset a miserly 1 1kg your hoops. Run up a flight of stairs. Hewings makes a valid point and further to the body weight issue it s worth considering the following too.

At 50 kph the lightning f 90 rider expends just 324 watts on a level windless road at sea level. The frame or type of bike is next. Sure you ve across triathletes lifting and running with their bikes over their head but don t get fooled into thinking the bikes are lightweight. The oltre xr4 aero road bike has a claimed frame weight of 980g and a fork weight of 370g a total of 1 350g.

Now we can compare a five per cent improvement in aerodynamics on the bike with a five per cent reduction of weight from the bike. But if a road bike is your preference then one of the newer aero road bikes would be worth considering. The rotating weight penalty only affects acceleration and we really don t have to worry about acceleration very much. The very basic difference between a triathlon and a road bike is the geometry of the frame more specifically the seat tube angle.

Let us know whether you love a super light bike or if you re more than happy with a bit of extra weight to be more aerodynamic. Significantly lower level of effort and hence for a few more minutes but in this analysis we only consider uci road racing bicycles with no aerodynamic accessories that add weight such as aero bars or disc wheels. A triathlon time trial bicycle is the most aerodynamic. And 2kg is a big reduction in road bike terms.

Most manufactures now have at least one high end aero road bike that has been wind tunnel tested. So spend less time being a weight weenie and eating salads and more time working on being able to hold an aerodynamic tuck and fuelling your. If performance is your aim there s strong evidence that you should put more priority on aerodynamics than weight. 5 things i learned in the wind tunnel.

When evaluating wheel performance wheel aerodynamics are the most important distantly followed by wheel mass. If you d like to contribute captions and video info in your.