The discrepancey in what the trailer tag said, compared to the tire probably was because the tag speced a different load range than what ended up installed on the trailer. Probably was a load range B spec,which maxed at 35psi, but you probably have load range C tires. The max 50psi stated on the tire will also spec a max load capacity at that psi.
You should probably do a little math and You can calculate your overall rig gross weight,boat motor,trailer, full tanks,all gear and batteries,and compare it to those numbers,divided among the tires. If your gross weight is close to the numbers,,that is,let's say your tires read 1760 lbs at 50psi, X2 for a single axle trailer,(X4 for a tandem) your single axle overall tire capacity is 3520 lbs at 50psi. If your gross weight is fairly close to that,definitely max it out. If it is a smaller rig and WAY under that,, say, for example,only 2200-2500 lbs then you MAY not necessarily want them up at 50psi. Don't just go by an assumed ,but FALSE,rule of thumb to max out a tire. In most cases it just happens to work out on our trailers due to the close matching of tire capacities and loads ,but an over inflated tire can cause handling problems and premature treadwear down the center. The entire face of the tire is not contacting the road surface as intended,only the center.
Do some math on your rig then check this link to a chart that can get you closer, so you won't have to guess.
http://www.goodyear.com/rv/pdf/rv_inflation.pdf
06-08-2009, 09:07 AM
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