Does anyone know a formula which can be used to calculate the amount of watts produced on the bike
Future-pro said:Does anyone know a formula which can be used to calculate the amount of watts produced on the bike
Weisse Luft said:Chain tension in Newtons multiplied by chain speed in meters per second yields power in Watts.
Likewise, crank torque in Newton*meters multiplied by crank rotational speed in radians per second (revolutions per second multiplied by 2 pi) yields power in Watts.
And finally, wheel torque in Newton*meters multiplied by wheel speed in radians per second is power in Watts.
This is how Polar, SRM and Power Tap measure respectively.
Cycle2max http://www.cycle2max.com/ is a pretty cool site that allows you to workout your power output on a given climb. If you do a search in their forum you should be able find the formula they use to do the calculation.Future-pro said:Does anyone know a formula which can be used to calculate the amount of watts produced on the bike
Also, for completeness sake, here's another great site that offers a power and speed computer for various conditions (i.e. climb grade, weight, wind, rider position, bicycle type, etc.):bikeguy2 said:Also see the excellent site analyticcycling.com to get this stuff figured out automatically.
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