Quote:
Originally Posted by TUFFBUFF
I'm in the same "boat" replacing mine as well and want something better.
Mine are 4.80/12 and last ones I got were the HD ones that hold 90 psi, didn't seem to help a bunch as they get pretty hot on the hiway. The boat is a 16ft lund with a 55hp
I was thinking going up to the 13", I have 3" between the tire and fender well and springs don't have a lot of give. Would radials be better is the consensus? I've been looking at the highest load rated trailer tires mostly as my trailer might be a bit light for the boat.
50psi radials will shed more heat so to speak than 90 psi trailer tires?
|
The larger the diameter the tire the less revolutions per mile and thus less heat. Also true of squirm and this is usually a function of the correct inflation. All things being equal, size, width etc; Radials heat up less because of their inherent design than bias ply. Their sidewalls however are not typically as durable as Bias ply tires are.
Radials of the right load range make far better trailer tires for pavement and gravel. If you have the tires on a heavy duty off road trailer the selection may well change but for boat and RV trailers I would always pick a radial.
You would benefit by putting 13" tires on the trailer if they fit. You also want to look at your load distribution in the boat when pulling. Weight the boat and trailer on a highway scale. Compare this weight of the loaded boat and trailer to the trailers weight capacity. If you are real close figure out how to reduce the weight on the trailer as much as possible or get a bigger trailer.
Make sure you have at least 10% of the weight on the tongue and try to keep most of the heavier stuff over the axle or just close either side, while still keeping 10-15% of the weight on the tongue. If you get too much weight on the tongue the trailer will sway back and forth going down the highway, this is not good but neither is having the tongue weight too light.