relationship between tire and PSI
 

What's the relationship between the quality and
wear of the tire and the PSI one can/should put
in a tube, assuming a brand new tube?

And why is it like that?

--
underground experts united
http://user.it.uu.se/~embe8573

relationship between tire and PSI
 

Emanuel Berg wrote:
What's the relationship between the quality and
wear of the tire and the PSI one can/should put
in a tube, assuming a brand new tube?


Wear varies oppositely to pressure (higher pressure gives slower wear).
A high pressure tire flexes less, runs cooler and squirms less on the
pavement.

Not sure what you mean about quality.

hth,

bob prohaska

relationship between tire and PSI
 

ok! if we pretend a scale where 10 is brand new tire and 1 is all stiff with visible cracks. on the tire it says max X psi. when the tire is worn down to say 5 on our scale, can it still take X psi? why/why not?

relationship between tire and PSI
 

On 10/31/2018 8:23 PM, wrote:
ok! if we pretend a scale where 10 is brand new tire and 1 is all stiff with visible cracks. on the tire it says max X psi. when the tire is worn down to say 5 on our scale, can it still take X psi? why/why not?


If you mean normal aging and degradation of synthetic butyl
rubber over time, that's mostly irrelevant to pressure rating.

The nylon carcass doesn't degrade and the bead lip at the
rim is protected from ozone and UV so it will be intact long
after the tread has dessicated and crumbled.

Would you want to corner hard on a dried hard cracked tread?
Probably not.
Will it hold rated pressure? Sure.

If you want to discuss injury/damage to casing or bead,
that's another discussion entirely.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

relationship between tire and PSI
 

no I get it you can't inflate if there is a hole thru the tire!

thank you both.

I send this from the field on a smartphone with GG which is why I can't cite BTW. or maybe I just haven't figured out how.

EB