I don't usually worry about it, either.  If teh beads look decent and it
hold air, I ride.  I even use the nominal width, not the actual, to choose
the tire pressures, then I round up to the nearest 5#.  Works great!

On Fri, Jul 9, 2010 at 11:15 AM, PATRICK MOORE <[email protected]> wrote:

> I never bothered to check. Apart from one Tom Slick that had a bump in it
> noticeable when I rode (it wasn't round) and one other tire I forget that
> tended to pop off the rim, I just mount and ride.
>
> Well, mount, *inflate* and ride.
>
> Patrick "trying to stretch his Big Apple Liteskins from 60 mm to 70 mm"
> Moore, who doesn't use talc or soap or anythin' 'cept a pump.
>
>
> On Thu, Jul 8, 2010 at 10:19 PM, Earl Grey <[email protected]> wrote:
>
>> To follow up,
>>
>> I bought a floor pump, dismounted the tires, soaped them up,
>> remounted, overinflated, still the same variability. Dismounted again,
>> covered  (dry) bead in baby powder, remounted, overinflated to about
>> 90psi, left overnight, still about 0.5mm variability in tire width
>> (between 34.7 and 35.2mm for the 35mm Pasela on Synergy OC, at about
>> 35psi). The "witness line" is still not even all the way around,
>> varying by about 0.5mm. I tend to think that this is variability in
>> the tire, and not poor mounting, but what do I know. I am fairly
>> certain this variability is completely inconsequential, I am just
>> surprised it exists.
>>
>> I would be curious to know any of you who pride themselves on good
>> tire mounting skills can measure similar variability in tire width.
>>
>> --
> Patrick Moore
> Albuquerque, NM
> For professional resumes, contact
> Patrick Moore, ACRW at [email protected]
>
>
>
>
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-- 
Ken Freeman
Ann Arbor, MI USA

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