Well, he discounted air drag from fatter tires; but I think I find that
fatter, and taller too, tires slow me down in a strong headwind compared to
28s or 32s.
And big fat 29er knobbies definitely have more wind drag in headwinds!
On Tue, May 2, 2017 at 5:48 PM, John Stowe
Jan's testing method involves actually riding down a road, so air resistance
should play into his results - at least at testing speeds (wind drag rises with
the square of velocity) - which is another reason to trust his results more
than those from a smooth, stationary roller.
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On Tue, May 2, 2017 at 10:32 AM, panog wrote:
> Actually 3 questions, if we add the "where to stop adding more suppleness
> to an already supple tire?".
>
True.
>
> [...] To me and my cycling exposure, the need for the extralight casings
> is just noise; I do use
Actually 3 questions, if we add the "where to stop adding more suppleness
to an already supple tire?".
I absolutely agree with your statement regarding the esoteric nature of the
perceived handling differences between wheel sizes simply due to the fact
that the absolute judge of what feels
Yes, the benefit of casing suppleness is principally lower rolling
resistance, though I find that more supple tires are also more comfortable
at a given tire pressure (and, OTOH, that they often require a higher
pressure to avoid sidewall flop than do tires with stiffer sidewalls).
We've got 2
And how much he or she cares about that difference
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The principal benefit of the greater suppleness is reduced rolling resistance,
reduced hysteric losses and thus greater speed for the same watt input.
The real question though is at which point we have diminishing returns. I dont
think that this is a one-answer-fits-all as I believe its greatly
Yeah, but his tests were to my judgment not conclusive. How do you "prove"
that this handling is better than that? And for whom? Once again, my own
experience, which is extensive, if not as extensive as Jan's, contradicts
this opinion.
The principal benefits of the extralights is not weight, or
Jan theorizes that there is an optimum diameter -- and absolute number --
for optimum handing, and that this correlates more or less to 622 X 32, 584
X 40 or 42, and 559 X 50.
I don't buy it, since the best handling bikes (thanks again, Grant!) I've
ridden were designed for 559 wheels with tires