Ford, GM and Chrysler cash in on posh pickups
......... Detroit is cashing in -- and not necessarily because of brands like Lincoln and Cadillac. Rather, it's because of high-end pickup truck and SUVs. The "luxe truck" phenomenon, dressed-up ...
Forum Discussion
That is my whole point...it is within the laws of physics and a system that has
checks and balances
Just saying 20's are better because it allows larger disc is out of context...there
are other attributes that must be dealt with
Correct, the aluminum weighs more than the air & sidewall it replaces in a smaller
dia wheel
Flywheel (centrifugal) forces negate some to lots of the gain from larger dia
disc. Toss in the thicker sidewalls of a lower aspect ratio tire and the weight
is even higher (don't believe...cut two of high/low profile and see for
yourself...on that cut open a 22.5 and then see the humongo difference in sidewall
thickness there)
While on low aspect ratio tires...they typically are much wider at the tread and
the ballooning effect both from PSI and RPM is a huge issue...normally on the
ones I've cut open to look see to confirm...their tread area is also much thicker
than higher profile tires I've cut open...again more weight. Of course LT tires
not 'P' class tires...though think they do too, but to a lesser degree
Ride quality that these folks demand also decreases with the higher unsprung
weight of larger dia wheels
Some potential benefits too...cooling air flow to cool the disc is potentially
greater. The lower profile tire does have naturally stiffer sidewalls for quicker
response (lower slip angle and lower times for T&T).
checks and balances
Just saying 20's are better because it allows larger disc is out of context...there
are other attributes that must be dealt with
Correct, the aluminum weighs more than the air & sidewall it replaces in a smaller
dia wheel
Flywheel (centrifugal) forces negate some to lots of the gain from larger dia
disc. Toss in the thicker sidewalls of a lower aspect ratio tire and the weight
is even higher (don't believe...cut two of high/low profile and see for
yourself...on that cut open a 22.5 and then see the humongo difference in sidewall
thickness there)
While on low aspect ratio tires...they typically are much wider at the tread and
the ballooning effect both from PSI and RPM is a huge issue...normally on the
ones I've cut open to look see to confirm...their tread area is also much thicker
than higher profile tires I've cut open...again more weight. Of course LT tires
not 'P' class tires...though think they do too, but to a lesser degree
Ride quality that these folks demand also decreases with the higher unsprung
weight of larger dia wheels
Some potential benefits too...cooling air flow to cool the disc is potentially
greater. The lower profile tire does have naturally stiffer sidewalls for quicker
response (lower slip angle and lower times for T&T).
