Videre non videri
Join Date: Sep 2004
Location: Gothenburg, Sweden
Bikes: 1 road bike (simple, light), 1 TT bike (could be more aero, could be lighter), 1 all-weather commuter and winter bike, 1 Monark 828E ergometer indoor bike
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Yes, but it's not that simple to do just like that.
To be able to get a decent estimate, you'd need to provide:
body size (seen from the front)
tyre size and tread
wind speed and heading relative your direction of travel
Even then, I'd say the margin of error is probably 30% or so...