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Old 04-01-2019, 12:10 PM   #1
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Question about load ratings and tire pressure for a towing newbie

I recently purchased a Flagstaff Microlite 21 DS.

My tow vehicle is a 2018 Ford F-150 Screw with 275/65 R18 Load Range C tires. Max PSI 50.

No trouble pulling the TT. I did notice the back tires wanted to kind of squirrel around a bit. Nothing crazy, but I can feel it.

Questions -

1. Are my C rated tires enough? And if so, should I increase my air pressure to 45-50 range up from my day to day of 40psi?

Thanks in advance.
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Old 04-01-2019, 12:11 PM   #2
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Also - TV is a 3.5L Ecoboost with Max Tow Package.
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Old 04-01-2019, 12:23 PM   #3
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Sorry. Canít figure out how to edit on the app...

Iím using a blue ox pro 750 sway kit as well.
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Old 04-01-2019, 12:42 PM   #4
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Going up to D or E load range will solve the issue for you. D or E have much stiffer sidewalls and won't flex as much as the C range.
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Old 04-01-2019, 12:50 PM   #5
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Thanks.

Question - in the time between new tires...can I adjust air pressure to help?
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Old 04-01-2019, 01:21 PM   #6
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Originally Posted by HiMyNameIsScottC View Post
Thanks.

Question - in the time between new tires...can I adjust air pressure to help?
Yes, that is what I do. I have GY Wranger SRAs on my TV.

Some may tell you to upgrade to LT tires, but that decision is up to you. Our TV is DWs DD, and the number of days per year that the TV and TT are on the road together does not justify me to upgrade to LT tires at this time.

Congratulations, I saw your set up in "Post your Towing Pics"

Safe and happy travels.
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Old 04-01-2019, 01:34 PM   #7
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I am actually in the process of upgrading my tires also. However, my trailer is a bit larger than yours. I would think you can get away with your current tires... I would be cautious of over inflating them.
If you are traveling long distances, above 2-3 hours from home, you may want the added security of E tires. Even with my large camper, if I stayed relatively local I would have no problem staying with stock tires. But we tend to take long trips- 1,500 miles+
It's worth mentioning that I have done these long trips on stock tires... but after a few of them, I am upgrading tires.

It will come down to personal preference and what you fell most comfortable with.
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Old 04-01-2019, 01:39 PM   #8
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Quote:
Originally Posted by HiMyNameIsScottC View Post
I recently purchased a Flagstaff Microlite 21 DS.

My tow vehicle is a 2018 Ford F-150 Screw with 275/65 R18 Load Range C tires. Max PSI 50.

No trouble pulling the TT. I did notice the back tires wanted to kind of squirrel around a bit. Nothing crazy, but I can feel it.

Questions -

1. Are my C rated tires enough? And if so, should I increase my air pressure to 45-50 range up from my day to day of 40psi?

Thanks in advance.
Are you asking about your truck tires?

Or trailer tires...
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Old 04-01-2019, 02:07 PM   #9
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Are you asking about your truck tires?

Or trailer tires...
Truck.
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Old 04-01-2019, 02:10 PM   #10
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Originally Posted by CentralMePistol View Post
I am actually in the process of upgrading my tires also. However, my trailer is a bit larger than yours. I would think you can get away with your current tires... I would be cautious of over inflating them.

If you are traveling long distances, above 2-3 hours from home, you may want the added security of E tires. Even with my large camper, if I stayed relatively local I would have no problem staying with stock tires. But we tend to take long trips- 1,500 miles+

It's worth mentioning that I have done these long trips on stock tires... but after a few of them, I am upgrading tires.



It will come down to personal preference and what you fell most comfortable with.


I would definitely keep it below the Max PSI of 50. I was thinking 45psi and that is 5psi over my daily drive.
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