Good Grief a tire question

This web site has all the tire info you could ever want. The pressure vs load capacity chart is on page 7. Not 100% sure but I think load capacity for a given tire size is the same regardless of tire brand.


http://www.trailmastertrailers.com/pdf/proper_tire_care_safety.pdf

temccarthy1 wrote:
I have a question and need advice.. I have a new 2014 Keystone Bullet 285RLS TT with the standard load range D tires with 14 " wheels.. It says max pressure 50 lbs on the sidewalls. When I bought the TT , I had the dealer check air pressure in front of me and they were at only 40. Tech said that is fine. I insisted he fill them to 45 and he did. I used the TT only twice this year an tested them at 45. Tires and hubs remained cool to touch when I checked at rest stops. Should I be running these exactly at 50 at all times in hot weather and cool, or do you think 45 is the sweet spot. Would like to hear from Rv'ers with a lot of experience on this subject. Thanks!

Are you sure those are load range D ? Typically, LR D would have a max pressure of 65psi. Load range C is typically 50 psi.
Whichever is on there, if it were mine I would run the max psi that is stated on the sidewall of the tire.

temccarthy1 wrote:
I have a question and need advice.. I have a new 2014 Keystone Bullet 285RLS TT with the standard load range D tires with 14 " wheels.. It says max pressure 50 lbs on the sidewalls. When I bought the TT , I had the dealer check air pressure in front of me and they were at only 40. Tech said that is fine. I insisted he fill them to 45 and he did. I used the TT only twice this year an tested them at 45. Tires and hubs remained cool to touch when I checked at rest stops. Should I be running these exactly at 50 at all times in hot weather and cool, or do you think 45 is the sweet spot. Would like to hear from Rv'ers with a lot of experience on this subject. Thanks!

Max air pressure is posted and used so tire can carry the Max weight it is designed for....

if stated 50... run 50... my opinion. max life, max load.

tomman58 wrote:
Howdy,
Boy I hate to ask this......................

I had a blow out on a 225.75R. 15 tire. The tire was but a year old, oh well. I was only able to get a load E tire. my regular tires inflate to 65 lbs the E can be at 80. I had Campers world put the (already mounted) E on the trailer and I think they adjusted it to 65 lbs..

Is this OK or should I ramp it back to 80. I may get 3 more E's when I get home in a few months but for now with about 7000 miles to go what is the best for the TT tires now.

TIA

What brand "E" rated tire did you use?

BTW.. My TT weighs 5500 lbs and is 30 ft long

I have a question and need advice.. I have a new 2014 Keystone Bullet 285RLS TT with the standard load range D tires with 14 " wheels.. It says max pressure 50 lbs on the sidewalls. When I bought the TT , I had the dealer check air pressure in front of me and they were at only 40. Tech said that is fine. I insisted he fill them to 45 and he did. I used the TT only twice this year an tested them at 45. Tires and hubs remained cool to touch when I checked at rest stops. Should I be running these exactly at 50 at all times in hot weather and cool, or do you think 45 is the sweet spot. Would like to hear from Rv'ers with a lot of experience on this subject. Thanks!

What does the rig weigh?
What does the sidewall say for max air pressure?
Until you get the rig weighed, put max air in all the tires(if they are rated all the same)

I would use 65# as well.

but remember to check TIRE HEAT .. new one to the others... should be almost the same...

65# in the new E tire will be fine. At only a year old, if defective, you should get an adjustment on the ruined tire.

When you have 4 E rated tires on your trailer, then 80# is what I would run.