Maths may be tricky but "half the area difference" isn't an imaginary
number.
On 8/10/20 2:20 PM, William deRosset wrote:
Hi, All,
I apologize for comparing a 47-584 to a 2.2" tire vs the 2.1"
described. Maths is tricky!
47mm to 53-584 is about 1.27X by area, a little more than half the
area difference between a 23 and a 28-622 tire area.
Best Regards,
Will
On Monday, August 10, 2020 at 12:15:21 PM UTC-6, William deRosset wrote:
Dear Steve,
47 to 55-584 is is about 1.37X by area and 1.38X by volume.
Compare to a 23mm to 28-622 tire 1.48X by area and 1.5X by volume.
I definitely notice the difference between a 23 and a 28, and
between a 28 and a 32 (using the same tire casing and adjusting
the tire pressure as appropriate).
You'll sure notice the difference if one is pumping up the tires
for consistent drop. I find for road use that the tire pressure
that works best for handling and riding out of the saddle etc
tends to offset the change in very wide tires (I submit that
47-55mm tires on the road are very wide; your definitions may
vary) and that the difference is not as prounounced above some
threshold (for me it is the 38mm to 42-584 change or the 30mm to
35-622 differences).
Best Regards,
Will
Willliam M. deRosset
Fort Collins, CO
On Friday, August 7, 2020 at 1:13:40 PM UTC-6, Steve Palincsar wrote:
On 8/7/20 3:03 PM, Jason Fuller wrote:
> While I should take my own advice when I say this, I think the
> difference between 47c and 2.1" is almost all in one's head
The difference between 47 mm ( "47c" is fingernails screeching
on a
blackboard) and 2.1" is a whopping 5.3mm. 5.3mm is more than
the
difference between a 23mm tire and a 28mm tire; more than the
difference
between a 28mm tire and a 32mm tire; more than the difference
between a
38mm tire and a 42mm tire. Those are non-trivial differences,
and are
instantly noticeable when riding. "Almost all in one's
head?" I doubt
it...
--
Steve Palincsar
Alexandria, Virginia
USA
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