Switching from 15 to 16 inch tires
I am considering switching my 15 inch ST225/75R15 LRE to a 16 inch LRE tire. I want to determine if this is feasible and affordable. I Currently have the above mentioned tires on my 5th wheel. Ther...
Forum Discussion
Some folks just like to have more capacity even when they don't need it. No reason to talk them out of it---it is a personal comfort thing and that's that.
However, just to clarify the OP's weight situation as is, here are the numbers:
5er's dry weights--UVW - 8,253 and Dry Hitch - 1,535, so percentage of pin wt is 18.6%
GVWR - 10,995 so at that, 18.6 % pin wt is 2,045 and axle wt 8,950
We know these can vary a little by how you load the trailer and how much is in which tanks, but it will be near there.
So now we have two 5,200 rated axles for 10,400 to carry 8,950, which is plenty (so that is why the trailer has them)
And four tires to carry that will need 2,238 each in capacity--assuming each has an equal share (they don't as PT mentioned, so you want some margin)
The ST225/75R15 LRE has a capacity of 2,830 which has that margin over the 2,238. (which is why they are on there)
The OP wants more margin. But that does not mean the trailer is designed all wrong. It is just that the OP wants more margin.
http://www.sturdybuiltonline.com/ST22575R15-Trailer-Tire-Radial-by-LoadStar-LRE-2830lb-Capacity_p_872.html
However, just to clarify the OP's weight situation as is, here are the numbers:
5er's dry weights--UVW - 8,253 and Dry Hitch - 1,535, so percentage of pin wt is 18.6%
GVWR - 10,995 so at that, 18.6 % pin wt is 2,045 and axle wt 8,950
We know these can vary a little by how you load the trailer and how much is in which tanks, but it will be near there.
So now we have two 5,200 rated axles for 10,400 to carry 8,950, which is plenty (so that is why the trailer has them)
And four tires to carry that will need 2,238 each in capacity--assuming each has an equal share (they don't as PT mentioned, so you want some margin)
The ST225/75R15 LRE has a capacity of 2,830 which has that margin over the 2,238. (which is why they are on there)
The OP wants more margin. But that does not mean the trailer is designed all wrong. It is just that the OP wants more margin.
http://www.sturdybuiltonline.com/ST22575R15-Trailer-Tire-Radial-by-LoadStar-LRE-2830lb-Capacity_p_872.html
