Anyhow.
The Powercalc prediction is the following ... revisited.
One of the hills @ 5% - Nice suffering for two miles in a 32 mile ride. Pedals go @ 58 rpm. Quads and hams are burning.
170mm crank @ 39.80 pounds of pressure at pedals = 12.87 mph. // cadence = 58 // wattage = 365.9
175mm crank @ 39.80 pounds of pressure at pedals = 14.79 mph. // cadence = 67 // wattage = 434.9
I repeat, this is the powercalc prediction.
Being the pounds of pressure at pedals the same, I would not only go 1.92 miles an hour faster but I would gain some efficiency since my cadence will be closer to 90.
With about the same percieved effort, I can produce 69 more watts.
My experience today in the 32 mile ride was the following: I even could drop some people from the B group on the uphills, keep with them in the downhills, and even take a few turns pulling the paceline.
Last time I simply could not ....
Go longer cranks!
pd: I will try them a few months, then I will decide it it would be reasonable to go up to 177's
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Last edited by huhenio; 05-18-06 at 07:32 PM.