I just had 6 Armstrong 225/70R19.5 ASR tires installed on my Class A 2011 Itasca Sunstar.I haven't been able to find the tire load inflation table for them (Armstrong website doesn't have them). Does anybody know where I can get it?Absent of that I would probably set the inflation to Itasca's spec on the inside rig sticker (85PSI all around). The shop that installed the tires set them to 110PSI, the maximum stated on the outside of the tire. Any thoughts?Thanks,Don

call the mfg when they open tomorrow and ask them.

rk911 wrote:call the mfg when they open tomorrow and ask them.Thanks RK, hope they have it!

Nothing wrong with setting them at the pressure stamped on the tires. That's the proper pressure based on the load stamped on the tire. Underinflation is much worse than setting them at their max pressure rating.The plate Itasca made up was for the least expensive tires they could find, set for the lowest pressure in order to give a soft ride. But that pressure doesn't necessarily equate to longest tire life. Often, it barely comes close.You asked for thoughts...mine is leave them where they are now. Get the rig weighed, then decide pressures per axle.

Jim@HiTek wrote:Nothing wrong with setting them at the pressure stamped on the tires. That's the proper pressure based on the load stamped on the tire. Underinflation is much worse than setting them at their max pressure rating.The plate Itasca made up was for the least expensive tires they could find, set for the lowest pressure in order to give a soft ride. But that pressure doesn't necessarily equate to longest tire life. Often, it barely comes close.You asked for thoughts...mine is leave them where they are now. Get the rig weighed, then decide pressures per axle.Thanks for the additional info Jim. I have weighed my rig for my previous tires (different brand) but as yet I haven't been able to find a load/pressure chart for my new ones, but definitely the way to go.

Use the pressure set on the label inside the RV, usually behind the drivers seat, should say 80 psi, that's a good start till you know the chart, do not put max pressure in tires, it will ride very hard.

Armstrong tire load inflation table | Good Sam Community

rk911
Explorer
Jul 16, 2017
call the mfg when they open tomorrow and ask them.
DonDWC
Explorer
Jul 16, 2017
rk911 wrote:
call the mfg when they open tomorrow and ask them.

Thanks RK, hope they have it!
Jim
Explorer
Jul 16, 2017
Nothing wrong with setting them at the pressure stamped on the tires. That's the proper pressure based on the load stamped on the tire. Underinflation is much worse than setting them at their max pressure rating.

The plate Itasca made up was for the least expensive tires they could find, set for the lowest pressure in order to give a soft ride. But that pressure doesn't necessarily equate to longest tire life. Often, it barely comes close.

You asked for thoughts...mine is leave them where they are now. Get the rig weighed, then decide pressures per axle.
DonDWC
Explorer
Jul 16, 2017
Jim@HiTek wrote:
Nothing wrong with setting them at the pressure stamped on the tires. That's the proper pressure based on the load stamped on the tire. Underinflation is much worse than setting them at their max pressure rating.

The plate Itasca made up was for the least expensive tires they could find, set for the lowest pressure in order to give a soft ride. But that pressure doesn't necessarily equate to longest tire life. Often, it barely comes close.

You asked for thoughts...mine is leave them where they are now. Get the rig weighed, then decide pressures per axle.

Thanks for the additional info Jim. I have weighed my rig for my previous tires (different brand) but as yet I haven't been able to find a load/pressure chart for my new ones, but definitely the way to go.
timmac
Explorer
Jul 17, 2017
Use the pressure set on the label inside the RV, usually behind the drivers seat, should say 80 psi, that's a good start till you know the chart, do not put max pressure in tires, it will ride very hard.
time2roll
Nomad
Jul 17, 2017
Most are the same for same size and load.
Try Goodyear.com for a table.

http://www.goodyearrvtires.com/pdfs/rv_inflation.pdf
Sfla2
Explorer
Jul 17, 2017
All most mfg are same # on same tires size
rk911
Explorer
Jul 18, 2017
DonDWC wrote:
rk911 wrote:
call the mfg when they open tomorrow and ask them.

Thanks RK, hope they have it!

what did the mfg tell you?
DonDWC
Explorer
Jul 18, 2017
time2roll wrote:
Most are the same for same size and load.
Try Goodyear.com for a table.

***Link Removed***

Sfla2 wrote:
All most mfg are same # on same tires size

Thanks for the tis yime2roll and Sfla2. Yes my new tires are the same size and actually have the same Max Load weight at same 110psi. So that sounds like the best route for me to go. I called the tire manufacturer but don't seem to be able to get their chart.

Don
DonDWC
Explorer
Jul 18, 2017
rk911 wrote:
DonDWC wrote:
rk911 wrote:
call the mfg when they open tomorrow and ask them.

Thanks RK, hope they have it!

what did the mfg tell you?

I called Armstrong Tire's customer service. They said they would email it to me (after saying they weren't sure they had it initially) within 30 minutes. A day has gone by and no email. A second call to them and their phones go to voice mail. Oh well.

I'm going to use my previous tire's load/inflation table since my tires are the same size, load rating class (G) and Max Load specs on the actual tires.

Thanks RK,
Don