Edit: photos on page 2
Short version: Why am I slow?
Here's my data from my last 20k. I averaged a rather unimpressive 23.3mph for the sightly rolling course. I weigh 175 pounds and averaged 310 watts, giving slight emphasis to the climbs, and slight recovery on descents. I don't have the greatest threshold power, so that's about the best power I've ever produced for the duration.
Assuming only air resistance, and that power required varies with the third power of velocity, I calculate that I would have had to produce ~52% more power to match the ~26:30 of some of the fast guys. That's 470 watts, which is 5.9 w/kg. None of these guys are pro. I know there are a lot of assumptions in here, but it should be close enough for a rough estimate. Even analyticcycling.com tells me I should be going at least 3mph faster, but I don't necessarily put too much stock in that.
I'm still working on the engine, but I can't help but conclude my bike isn't very TT. What am I missing?
Race configuration saturday:
- TI frame w/ cages removed
- powertap w/ disc cover in back
- 36 spoke training wheel in front (bent my other wheel the day before)
- 23mm Michelin Pro2race tires
- profile design clip on aero bars set as close together as physically possible
- aero helmet
- aero booties
I got beat by a team mate on a road bike with no aero equipment. Normally we seem to be evenly matched. Or am I actually just that slow?