Bumblebeetuna96 wrote:
Based on where I place in each discipline. Its a tough decision. I am looking into ways to squeeze more speed out of my setup. Why do you think you were better running off the tri bike? Was it because you didn't need to push as hard, or based on geometry?
I am a fast biker. I feel the faster I become the more the wind is becoming a factor
I should mention that I started with a road bike with aerobars attached. I was fitted at my LBS but it was pretty informal, more of an eyeball approach than anything technical. When I decided to invest in my tribike, I first got a professional fitting and bought my tribike based on the fitter's recommendations. So it's probably safe to say that I had a much better setup on the tribike, which means my situation may not be comparable to yours.
To answer your question...why did I get faster at the run? I would say that I am more comfortable and relaxed pushing high watts. My upper body has less tension so over the long run I am less tired by the time I get to the run. Also, at higher speeds I feel less scrunched up, like my hips are a bit more open. The smoothness and stability of a tribike as I move well north of 20 mph might help too. Under the right conditions, a tribike really is a knife slicing through the wind and that smoothness helps me stay relaxed. But I've heard many others who say they feel more stable on a road bike at high speeds, so a lot depends on the individual.
In reality, it probably comes down to fit as much as anything. Someone on a good aero road frame who has has adjusted his position well is probably not giving up huge amounts. It may just be easier to get into a position that balances comfort, aerodynamics, and power on a tribike.