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Rider Biker Cycling

May 20, 2011 | Author



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Rider Biker Cycling
Would a great biker win races with a somewhat inferior bike? $250 bike vs $2500 for example.?

When reading about the sport cycling one often sees much about the equipment ( carbon frame, good components and so on) but little about the actual biker.
My question is how important is the bike compared to the rider. Would a pro beat a semi pro in a race where he was equipped with ''inferior'' eqipment. I commute 20 miles each way to work on a Scott sub 20 and am curious how much faster I would go with an extremely expensive bike...
Or would it be better to try to train, lift weights and so on to get down the commute time.

Getting fitter will make the most difference.

A bicycle and riders speed is determined by Wind resistance rolling resistance and power output.

Wind resistance consumes most of the power that a rider puts out (About 80%). The aerodynamic drag of the bike is quite small in comparision to the drag on the rider. A good bike maybe a few percent better.

edit
Aerodynamic difference between a mountain bike and a road bike is significant (20-30%) as it places the rider in a more aerodynamic position

Rolling resistance
Weight is the biggest contributer to rolling resistance. That is the weight of the bike plus rider. An expensive bike may save upto 3% of the total weight. That relates to about 3% of 20%(left) of power output.

Power output
A fit novice rider will output around 200 watts to maintain a speed of around 20mph(32km/h). A seasoned pro can maintain power output of around 500 watts for periods of an hour.

Yep a good rider will blow a lesser rider away on average gear. (depending on just how average the gear is and how much lesser the other rider.)

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