Tire Max Load per Tire1 Max Speed Diameter Max Pressure Maximum Safe Rig Weight for Single Axle1 Maximum Safe Rig Weight for Tandem Axle1 Kumho 857 205R14 2271lbs 99MPH 27" 65psi 3634lbs 7267lbs Kumho 857 185R14 1874lbs 99MPH 25.6" 65psi 2998lbs 5997lbs Kenda Karrier ST205/75R14 2,039lbs 65MPH 26.3" 65psi 3262lbs 6525lbs Hankook RA08 185R14 1984lbs 99MPH 25.6" 65psi 3174lbs 6349lbs Hankook RA08 195R14 2094lbs 106MPH 26.3" 65psi 3350lbs 6701lbs Maxxis Bravo UE-168 205R14C 2270lbs 99MPH 27.1" 65psi 3634lbs 7267lbs Maxxis Bravo UE-168
205/70R14C1874lbs 99MPH 25.4" 54psi 2998lbs 5997lbs LANVIGATOR Mile Max 195R14 2094lbs 106MPH 26.3"2 Unknown 3350lbs 6701lbs Taskmaster TRTM2157514D 2200lbs 81MPH 27" 65psi 3520lbs 7040lbs Carlisle Radial Trail RH 215/75R14 1870lbs 87MPH 26.8" 50psi 2992lbs 5984lbs Goodyear Marathon ST205/75R14 1760lbs 65/75MPH3 26.1" 50/60psi3 2816lbs 5632lbs Goodyear Marathon ST215/75R14 1870lbs 65/75MPH3 26.7" 50/60psi3 2992lbs 5984lbs Power King Towmax ST205/75R14 1760lbs 65MPH4 26.1" 50psi 2816lbs 5632lbs Power King Towmax
ST215/75R141870lbs 65MPH4 26.7" 50psi 2992lbs 5984lbs Greenball Towmaster ST205/75R14 1760lbs 65MPH4 26.0" 50psi 2816lbs 5632lbs Greenball Towmaster ST215/75R14 1870lbs 65MPH4 26.7" 50psi 2992lbs 5984lbs Maxxis 8008 ST205/75R14 TL12460000 1760lbs 65MPH 26.1" 50psi 2816lbs 5632lbs Maxxis 8008 ST205/75R14
TL124620001430lbs 65MPH 26.1" 35psi 2288lbs 4576lbs Maxxis 8008 ST215/75R14 1870lbs 65MPH 26.7" 50psi 2992lbs 5632lbs
1. Determining the weight of your rig is a little complicated. What you really need to know is the weight that the tires are supporting. If you weigh the loaded trailer while hitched to a tow vehicle, you will get the weight the tires are supporting. If you weigh the loaded rig while unhitched and on the tongue jack, you are including the tongue weight that is normally supported by the tow vehicle so you need to subtract 10% of the scale reading. Having the rig loaded with gear, fuel and anything else you normally haul is important.
Some manufacturers recommend that the combined capacity of all of the tires should exceed the loaded trailer weight by 20 percent. That's what I used in the above table. Your tolerance for risk may be higher. I think you can be pretty confident if your rig, loaded for fishing, scales less than the numbers in the appropriate column on the right you are in pretty good shape with that tire.
These weights all assume maximum trailer tire pressure.
2. Calculated. They didn't publish this data.
3. Goodyear has published a bulletin regarding high speed operation of Marathon tires. In short, if your rims and valve stems can handle it, you can increase the pressure by 10psi if you need to operate at speeds up to 75MPH. http://www.tirerack.com/images/tires...plications.pdf
4. I was unable to find the speed rating for these tires. Industry standard is 65MPH, so assume so unless reliable information shows otherwise.
Note that some of these tires are available in lighter capacity tires with the same name. Maxxis especially! Be sure of what you are getting if you order tires.
This is the result of my own search for tires. I went with the good ones I found, and I added a few that other people here have talked about for comparison. Don't trust my information without checking for yourself. I've been known to do stupid things and make typos. More often than I'd like. If you find an error or you know of another tire that could or should be included, let me know and I'll add it to the table.
The scariest takeaway from the chart is that with a tandem you can hardly go wrong, but with a single you can hardly go right.
The "Maximum Rig Weight" Column gives the most your rig can weigh when scaled with just the trailer tires on the scale while the trailer is hitched to the tow vehicle. This gives you the weight on the trailer tires. That includes outboard, trailer, batteries, tackle, fuel, cooler and everything else, including that box of Twinkies in the rod locker. This takes the 20% cushion into account as well as the number of tires.
The "Max Speed" is the manufacturer's maximum speed rating for this tire. If you go faster, you lose load capacity. How much you lose I can't tell you, but if you are close to the weight limit, you'd better watch the speed rating.
NOTE: I posted this as a reply to the "Tire Facts and Other Info" sticky so it will stay on top.