Road Cycling - frame and hip possition

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spazegun2213

01-21-04, 05:46 PM

I noticed this training with a friend today. He has a normal frame where as i have a compact frame. I really want to know whether more power is produced with your hips right over the BB and cranks (normal) instead of further to the rear ( i good 2-5 cm) like on compacts?

-Ross

Poppaspoke

01-21-04, 08:38 PM

As long as you have the correct leg extension, a couple of cm fore or aft shouldn't affect power output (assuming other aspects of bike fit are optimal). The weight of the legs powering the pedals down might be affected, but I don't see that coming into play unless you are riding a recumbent.

SteveE

01-21-04, 08:54 PM

You could plunk down the $600 bucks for a powertap and then play around with your position if you're really serious!

cycletourist

01-21-04, 09:34 PM

Read the essay, How to fit a bicycle by Peter White (click the link in my sig line). The author explains saddle fore-aft position and how it affects both power and comfort.

spazegun2213

01-22-04, 11:02 AM

wow, thats a good essay, thanks for the post!!