JasoninHalifax wrote:
And by the same token, failure to revisit one's beliefs can also lead one down the wrong road.
Yes, you are absolutely right about that. And that is why ST is really a good place to learn, and to learn new things, and to also re-visit old things.
If there is evidence out there that, when designs are optimized on all sides, that wider rims and wider tires are faster than narrower rims and narrower tires for TT and Tri racing (on decent asphalt roads), then I would be very interested to see it. So far, info on this forum has shown that, when properly inflated, wider tires actually have more rolling resistance than the same also properly inflated narrower tires. And based on physics and universally accepted aerodynamic principles, lots and lots and lots and lots of info has shown that, when all other things are equal (which is the way it should be when making a comparison that focuses on a particular design element) that bodies moving through a fluid (air) that have smaller frontal areas have much lower drag than similar shapes with greater frontal areas.
That said, it there is new info out there that I am not aware of, I would love to see it. If the evidence is any good, I will toss out the conclusions above immediately. Because I have no confirmation bias, I just want to know what is really the fastest for my needs (racing triathlon on decent/typical US asphalt roads).
But for training, I don't care about my speed over the ground at all (well, as long as I can see
some change in scenery during my rides), but I do care about my rear end. And my rear end says that 50mm tires at 20 to 25 psi is great !
Advanced Aero TopTube Storage for Road, Gravel, & Tri...ZeroSlip & Direct-mount, made in the USA.
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