Another Tire Question
Time for new tires. Currently have ST205/75/15C's. They are the originals and up til now have been fine however age is taking it's toll and sidewalls are cracking. Stopped at America's Tire. Seems the...
Forum Discussion
nothing in the charts quoted indicates that the wheels are only rated for 65 psi.
the charts are indicating the maximum load rating of that particular size and load range tire and the psi that the tires must be inflated to to carry that weight .
to limit the upgrade in tire size and psi limits the safety that can be built in by using a Load Range D ( 65 psi ) or Load Range E ( 80 psi ) tire .
The Tire is the Weak Link in the weight rating carried .
The steel wheel is not weaker than the tire . The steel wheel can take considerably more psi than the tire can . That is the reality and it also is logical.
A TPMS system although a good idea is not as good as spending that same expense to upgrade the current tire to one with a higher load rating as shown on the sidewall .
Hundred of thousands of GM trucks have been shipped with 245/75R16 tires as factory equipment . My swag guess is that 25 % of those tires have been upgraded to a 265/75R16 tire at replacement time . The factory GM wheels are 6.5 inches wide . Although the 265/75 tire calls for a 7 inch to 9 inch wheel width there really are no problems due to a narrow rim width other than it is not optimum.
I have been using the 265 instead of the 245 on factory 6.5 " wheels since 1998 .
For the record i use 2 sets of wheels. My snow tires are on factory 6.5" GM aluminum wheels . My summer Michelin 265/75r16E are mounted on 8 inch wide Weld aluminum wheels. The truck handles better with the 8" wheel and the summer tires of course.
it is less safe to continue using the factory supplied tire rated for 1820 # than upgrading to a higher rated tire (say 2271# ) even though a higher psi is needed .
brand is far less important than the rated load capacity .
tire rack can be your friend .
check out the specs from their trailer tire tab and do some comparisons for yourself .
because the continental Vanco 2 tire is rated on the LT criteria rather than the ST criteria it is a 99 mph tire . i would consider that particular tire to be the class of the field for RV use . it is factory equipment on the mercedes sprinter vans and motorhomes .
here is the web link with the specs:
http://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=Vanco+2&sidewall=Blackwall&partnum=27R5V2&tab=Specs
the charts are indicating the maximum load rating of that particular size and load range tire and the psi that the tires must be inflated to to carry that weight .
to limit the upgrade in tire size and psi limits the safety that can be built in by using a Load Range D ( 65 psi ) or Load Range E ( 80 psi ) tire .
The Tire is the Weak Link in the weight rating carried .
The steel wheel is not weaker than the tire . The steel wheel can take considerably more psi than the tire can . That is the reality and it also is logical.
A TPMS system although a good idea is not as good as spending that same expense to upgrade the current tire to one with a higher load rating as shown on the sidewall .
Hundred of thousands of GM trucks have been shipped with 245/75R16 tires as factory equipment . My swag guess is that 25 % of those tires have been upgraded to a 265/75R16 tire at replacement time . The factory GM wheels are 6.5 inches wide . Although the 265/75 tire calls for a 7 inch to 9 inch wheel width there really are no problems due to a narrow rim width other than it is not optimum.
I have been using the 265 instead of the 245 on factory 6.5 " wheels since 1998 .
For the record i use 2 sets of wheels. My snow tires are on factory 6.5" GM aluminum wheels . My summer Michelin 265/75r16E are mounted on 8 inch wide Weld aluminum wheels. The truck handles better with the 8" wheel and the summer tires of course.
it is less safe to continue using the factory supplied tire rated for 1820 # than upgrading to a higher rated tire (say 2271# ) even though a higher psi is needed .
brand is far less important than the rated load capacity .
tire rack can be your friend .
check out the specs from their trailer tire tab and do some comparisons for yourself .
because the continental Vanco 2 tire is rated on the LT criteria rather than the ST criteria it is a 99 mph tire . i would consider that particular tire to be the class of the field for RV use . it is factory equipment on the mercedes sprinter vans and motorhomes .
here is the web link with the specs:
http://www.tirerack.com/tires/tires.jsp?tireMake=Continental&tireModel=Vanco+2&sidewall=Blackwall&partnum=27R5V2&tab=Specs
