Originally Posted by
VegasJen
Far from an expert here but my guess is that if you're as fast or faster on a road bike than on a dedicated TT bike, then your position on the TT bike is off. But there are, of course, other factors that come in to play such as crank length, gearing, etc. Not exactly an apples to apples comparison.
I was thinking something very similar. I was wondering about your aero position on the two bikes. I've see people create a very aero set-up on a road bike, but in general it's tough to set-up a bike as aero as you can make a dedicated trip-bike. I also think a longer test ride could be more telling.