Proper inflation question

[Mark42]

The GVW of my trailer is 1180 lbs. The manufacturer lists the trailer weight at 180. The total of boat(560), motor(180) and accessories(gas, battery, spare, etc = 150) is 890 lbs. That leaves me about 110 lbs short of the tailer limit.<br /><br />Should I run the tires at their max inflation (480 x 12 B) to get their max load capacity of 780lbs each? or should I run them lower to try to match the calculated load?<br /><br />If I run lower pressure, can I use the "flower on pavement" method of checking for proper tread contact? That is where flower is sprinkled on the pavement and the trailer is pulled through it and the resulting tire track is inspected for proper tread contact. <br /><br />Thanks,<br />Mark.

 

[salty87]

Re: Proper inflation question

i'd stick with the manufacturer recommendation. you also have to consider sidewall flex with trailer tires.

 

[DJ]

Re: Proper inflation question

Low inflation equals heat. Those are small wheels and will turn up pretty high. <br /><br />Run with the maximum listed on the sidewalls.

 

[Solittle]

Re: Proper inflation question

Forget what your trailer manufacturer says. He did not make the tires. Use the max load stamped on the sidewall of the tire.

 

[joe8739]

Re: Proper inflation question

While we are on this subject, I have a pair of 6 ply 6.90 x 9 tires. The max listed is 1510 pound capacity at 100psi. 100 psi seems a little high. The orignal tires on the trailer were of a less load range (I think around 1100 pounds or so) at a max of 60 psi. The boat weighs about 2000 pounds and I dont know what the trailer weighs, maybe a couple hundred or so. Is it really necessary to put 100 in them, or should I go around 80 or 90 maybe?