RABUBI Posted June 20, 2007 Share A question, Is there a formula to calculate average watts on a climb if you have the following. Ave speedEnergy expenditureGradient %Total Distancetotal Time Any of the Boffins out there know how to do this? Maybe someone doing highschool science? Link to comment Share on other sites More sharing options...
Canaris Posted June 20, 2007 Share http://www.google.co.za/search?hl=en&q=cycling+power+output+calculator&btnG=Search&meta= Link to comment Share on other sites More sharing options...
ewep Posted June 20, 2007 Share OK, here goes: x(squared) * y. Then deduct C after multiplying that with the sum of A+B. Remember to divide Z into the result. If you then find a good answer. let me know, 'cause I have NO clue what I just said!!!! Link to comment Share on other sites More sharing options...
Canaris Posted June 20, 2007 Share http://www.mne.psu.edu/lamancusa/ProdDiss/Bicycle/bikecalc1.htm Link to comment Share on other sites More sharing options...
pastapouch Posted June 20, 2007 Share Don't think school science covered that detail. I remember something about calculating the power it would take to lift an object a specific height. The formula was something with weight , the time it took and the height. Or may I'm missing the pot completely Link to comment Share on other sites More sharing options...
ewep Posted June 20, 2007 Share Don't think school science covered that detail. I remember something about calculating the power it would take to lift an object a specific height. The formula was something with weight ' date=' the time it took and the height. Or may I'm missing the pot completely[/quote'] You've NEVER had the plot!!!! How the hell do you want to loose it now? Link to comment Share on other sites More sharing options...
pastapouch Posted June 20, 2007 Share ... but on the other hand ewep, I know that it take much more power to take you up a hill than me Link to comment Share on other sites More sharing options...
ewep Posted June 20, 2007 Share ... but on the other hand ewep' date=' I know that it take much more power to take you up a hill than me[/quote'] But at least I make it to the end of my MSD's (MEDIUM slow distance)!!! Link to comment Share on other sites More sharing options...
RABUBI Posted June 20, 2007 Share The calculator is Brittish, a bit confusing, what is the inches diameter for a normal road wheel? How many cm in one inch, Kg/Lbs, and km/miles? Link to comment Share on other sites More sharing options...
Canaris Posted June 20, 2007 Share one inch = 2.546 cm Link to comment Share on other sites More sharing options...
pastapouch Posted June 20, 2007 Share ... but on the other hand ewep' date=' I know that it take much more power to take you up a hill than me[/quote']But at least I make it to the end of my MSD's (MEDIUM slow distance)!!! ha, but did you tell that I've been training only for 5 weeks before that... Link to comment Share on other sites More sharing options...
ewep Posted June 20, 2007 Share Hoe't jy laas gese, *** excuse! Link to comment Share on other sites More sharing options...
MUNTU Posted June 20, 2007 Share Try this one RABUBI: http://www.kreuzotter.de/english/espeed.htm Link to comment Share on other sites More sharing options...
RABUBI Posted June 20, 2007 Share OK, thanks for the replies, what I wanted to check was my ave Watts on the climb on the Kremetart first stage as per the Data from my Polar:Duration00:15:00Average Speed 22.0km/hDistance 5.6 kmGrade %5.0%Worked out to between 310=320 watts on average Link to comment Share on other sites More sharing options...
TNT1 Posted June 20, 2007 Share RABUBI, go to www.machinehead-software.co.uk you can download a good software kit from there to let you do power calculations.... Their power calc works on similar algorithms to i-bike... similar variables etc... Link to comment Share on other sites More sharing options...
BikeMax Posted June 20, 2007 Share www.analyticcycling.com Link to comment Share on other sites More sharing options...
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