Bike Forums > RPM's converted to distance??
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 01-05-10, 04:08 PM #1 jmcgonigle Newbie Thread Starter   Join Date: Jan 2010 Bikes: Posts: 2 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) RPM's converted to distance?? I probably should know how to do this from high school math but...... Is there a rough estimate of distance from an indoor workout? I know: RPM, time, wheel (700).
01-05-10, 07:22 PM   #2
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 Originally Posted by jmcgonigle I probably should know how to do this from high school math but...... Is there a rough estimate of distance from an indoor workout? I know: RPM, time, wheel (700).
"700" is a type, not a measurement.

You could calculate this, but it won't really matter. I would ask: how do you know RPM (I assume cadence) w/o knowing speed? Speed x time = distance. Thankfully my cadence/spedometer is rear-mounted, so it works on my Road Machine. With that, there's an approximate power curve, so a speed to power translation, within reason, is possible.

It would be much more useful to approximate how much power you put out, or use a HR monitor. The speed you work at indoors will probably not translate to the speed you do outside.

Last edited by tadawdy; 01-05-10 at 07:26 PM.

 01-05-10, 09:00 PM #3 umd Banned     Join Date: Sep 2005 Location: Santa Barbara, CA Bikes: Specialized Tarmac SL2, Specialized Tarmac SL, Giant TCR Composite, Specialized StumpJumper Expert HT Posts: 28,387 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) It would be possible to determine your "speed" if you knew your cadence and what gear you were in, but the resulting answer would be meaningless.
 01-05-10, 11:02 PM #4 jmcgonigle Newbie Thread Starter   Join Date: Jan 2010 Bikes: Posts: 2 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) Maybe a different question then.... now that I have moved indoors to trainer, how do a equate my workout to what I do on the road? I guess limiting my perspective to miles is no the way the continue. I do no have a power tap.
 01-05-10, 11:18 PM #5 umd Banned     Join Date: Sep 2005 Location: Santa Barbara, CA Bikes: Specialized Tarmac SL2, Specialized Tarmac SL, Giant TCR Composite, Specialized StumpJumper Expert HT Posts: 28,387 Mentioned: 0 Post(s) Tagged: 0 Thread(s) Quoted: 0 Post(s) Time and intensity. If you have a heart rate monitor you can use that or you can just go by your perceived effort. E.g. "really hard" or "easy spin."