Tire Size
I just purchased a new trailer that came with 205/75 R15 tires. Any harm in going up to a 225/75 R15 tire? I would like the increased plys and load range. Thank you.
Forum Discussion
time2roll wrote:
Gdetrailer, that top tire show 225-E. All 205-15 are C & D that I am aware of.
For the OP watch your approved wheel width and clearance before you jump to 225s. May need new wheels. Keep in mind trailer suspensions do deflect significantly when turning sharp.
I have and recommend the Goodyear Endurance ST205R15-D. Speed rated to 80 something.
Right you are.. Looks like a bug in that websites search that substituted 225 for 205..
LR D for 205 is 8 ply rating and is good for 2,150-lb max load at 65 psi
Not sure how big and heavy the OPs trailer is but for two axle trailer you have 8600 lbs of capacity with LR D..
LR C has ply rating of 6 and a 1,820-lb maximum load at 50 psi and for two axle you have 7280 lbs of capacity..
But as I mentioned before, if OP has LR C to get the extra capacity they MUST inflate to sidewall pressure which in LR D is 65 PSI..
I still stand by the statement that as long as they have bought a BRAND NEW TRAILER there is no compelling reason to change tires or sizes "just because" they want more ply rating and should just run what they have until worn..
IF they experience a blowout, THEN move up.. The odds of a blowout are not all that great, yes, there have been some folks who have experienced multiple blowouts, but the reality is those most likely are self inflicted by overloading and or underinflating.
Running over stuff on the road like nails, bolts and other objects, jumping curbs can damage even the highest ply rating tire available even on the lightest load..
Heck I blew out a 10 ply tire on a empty pickup just running over a bolt on the road that I never saw.. Just heard a woosh sound.. Tire mechanic pointed to the size of hole and said non repairable, a bolt went through, too big of hole to repair..
The blowout scare on this and many other forums are way over hyped..
