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Old 06-13-2015, 12:27 AM   #11
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Quote:
Originally Posted by bucko View Post
I'm a newbie with this increase of tire size, so excuse my inexperience if I'm asking a wrong question: what about the additional one inch in sidewall "flex"? Would there be an issue with a 14 inch sidewall flexing more than a 13 inch? Would this possible additional flex cause the TT to sway side to side more as you are traveling?
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Originally Posted by Jimw606 View Post
Gee, I thought the side wall flex was just on the bottom. I learn every day.
13" or 14" refers to the rim size, that is the steel part. The height of the sidewall would be in the tire size! If you increase the sidewall on the tire this "could" lead to a slightly less stable trailer. If you increased the rim size but decreased the sidewall height to keep the same diameter it would stiffen the ride and become more stable but also have a stiffer ride.

Hope this clears the muddy waters!
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Old 06-13-2015, 08:50 PM   #12
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We changed tires on our jayfeather ultra 17z from the stock size 13 inch tire to a 205/75/14 and solved our tire problems. They run at 50 psi instead of 65psi for a smoother ride and better wear.
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Old 07-07-2015, 12:35 AM   #13
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Originally Posted by donnajk View Post
We changed tires on our jayfeather ultra 17z from the stock size 13 inch tire to a 205/75/14 and solved our tire problems. They run at 50 psi instead of 65psi for a smoother ride and better wear.
We too have noticed also that the trailer does seem to ride smoother and doesn't move around as much when being towed. We are overall very pleased with the outcome of the tire swap. Still not sure as to why Jayco wouldn't have installed these in the first place, you would think that this would also be better for the wheel bearings by not having to turn as many RPM's.

Glad to hear of more success stories with the tire swap.

Happy camping!
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Old 07-17-2015, 02:02 PM   #14
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I have a 2006 19H that came with 13's. I switched to 14's and had no clearance problems at all. You can check Discount Tire on the web and go to info center then to tire info and then to tire calculator. That will tell you the difference in the specs of the tire and you can compare different sizes side by side.


http://www.discounttire.com/dtcs/home.do
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