Forum Discussion
spike99
Mar 09, 2017Explorer
Where inner fender clearance isn't an issue, I upgrade all my trailer tires +1 size. re: 205s to 215s or 225s to 235s.
Why?
I know that many trailer makers build their stuff at "minimum" specs. Nothing more. For more safety buffer (like hitting double railway tracks and/or unseen deep hole), the +1 larger size tire can take the abuse.
With above in mind:
205/75R14 weight rating = 1,760 lbs at 50 psi
215/75R14 weight rating = 1,870 lbs at 50 psi
Note: If 2 x axles, that's almost 400 more lbs buffer increase. Even more buffer if the 215s are "D" rated as well.
Note: +1 tire size doesn't mean trailer can have higher GVWR. It means the tires can now take extra abuse - when its needed.
For my boat trailer, its factory 13" steel rims were over rusted. And, it needed 185 rubber to be replaced as well. For that trailer, it was "less costly" to replace its rims/rubber with new 14" @ 225s. Luckily, it had inner fender clearance for this upgrade.
Why?
I know that many trailer makers build their stuff at "minimum" specs. Nothing more. For more safety buffer (like hitting double railway tracks and/or unseen deep hole), the +1 larger size tire can take the abuse.
With above in mind:
205/75R14 weight rating = 1,760 lbs at 50 psi
215/75R14 weight rating = 1,870 lbs at 50 psi
Note: If 2 x axles, that's almost 400 more lbs buffer increase. Even more buffer if the 215s are "D" rated as well.
Note: +1 tire size doesn't mean trailer can have higher GVWR. It means the tires can now take extra abuse - when its needed.
For my boat trailer, its factory 13" steel rims were over rusted. And, it needed 185 rubber to be replaced as well. For that trailer, it was "less costly" to replace its rims/rubber with new 14" @ 225s. Luckily, it had inner fender clearance for this upgrade.
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