Tire & Wheels Packages
Get the Right Tires to Eliminate Trailer Blowouts!
Choose a tire and wheel combination that equals your trailer's GVWR.
This will give you a 20 percent minimum reserve load capacity.
Reserve Load Capacity
To understand "Reserve Load Capacity," you need look no further than the vehicle in your driveway.
Did you ever wonder why we have very few tire issues with our passenger cars, SUV's and light trucks, yet our trailer tires are a constant worry?
The vehicles we drive every day have a 20-30 percent reserve load capacity, yet our trailers are running 90 percent + loaded all the time.
So, if we want the type of safety and reliability out of our trailer tires that we have in our passenger vehicles, we first need to achieve a similar 20-30 percent reserve load capacity.
Example
2016 Mazda 6 has a GVWR of 4,288 lbs The tire is a P225/45R19 92W with a load capacity of 1,389 lbs per tire or a total of 5,556 lbs or 77 percent loaded at GVWR. A 23 percent reserve load capacity at GVWR. This vehicle has a curb weight of 3,130 lbs or 1,158 lbs of cargo capacity.
How do I determine how much additional capacity I need on my 5th wheel trailer?
Your GVWR should be on a tag on the trailer near the tire information tag.
Simply take your GVWR (Target weight) ÷ 4 tires = Target load per tire.
This assumes a 20% pin weight
Example (14,500 lb. GVWR): 14,500 lbs ÷ 4 tires = 3,625 lbs target per tire load capacity.
Remember, we want a 20% reserve load capacity so, we do not deduct the 20% pin weight.
Pin Weight Variation
Because pin weights will vary the preferred method is to weigh each wheel position on the trailer using a program like Escapees Smart Weigh program
In this example we have a 2012 Redwood 36RL that was Smart Weighed, with a 15,500 lb. GVWR.
The actual pin weight is 3,000 lbs and the heaviest loaded wheel position is the LF at 3,300 lbs
3,300 lbs x 120% = 3,960 lbs would be your target per tire load capacity.
Tire Load Chart
Find the corresponding target load & tire in this chart.
Compare the overall diameter (O.D.) of your current tire to your new tire.
| Size LR | Load | Speed | PSI | O.D. |
|---|---|---|---|---|
| 215/75R17.5 H | 4805 | 75 | 125 | 30.4 |
| ST235/85R16 G | 4080 | 65 | 110 | 31.8 |
| LT235/85R16 G | 3750 | 75 | 110 | 31.8 |
| LT235/85R16 E | 3042 | 75 | 80 | 31.6 |
| ST235/80R16 E | 3420 | 65 | 80 | 30.8 |
| ST225/75R15 E | 2830 | 65 | 80 | 28.3 |
| ST225/75R15 D | 2540 | 65 | 65 | 28.3 |
| ST205/75R15 D | 2150 | 65 | 65 | 27.2 |
| ST205/75R14 C | 1760 | 65 | 50 | 26.1 |
Trailer Tire Specifications
We currently sell Goodyear, Rainier, and some Sailun tires, wheels, and tire + wheel assemblies. Call for pricing and help with your selection.
"Nothing but praise"
I wish to thank the entire PTB team for their professional service. From the initial set up of parts needed, ordering and shipping and finally the installation yesterday by Josh and Heat Read Moreher, I have nothing but praise for Performance Trailer Braking. Thank you for living up to your superb reputation.
Dave Walker
"Nothing But Glowing Posts About This Company"
Upgraded our Solitude at Performance Trailor Braking. Dennis in Cochise, AZ did an amazing job! Shared a lot of knowledge, very responsive and just a very nice guy. 8k axles, 4k Slipp Read Moreer springs, disc brakes, comfort ride shocks, and crossbeams. I no longer worry that our weight is “right on the edge”. I now see why I’ve heard nothing but glowing posts about this company and this upgrade! They are also at many rallies. Thank you Dennis!
Jim Skelnik
Box Elder, SD
"Truly one of a kind amazing people!!!!"
Hi Kelly,
I just wanted to take a minute and thank you for all your help getting this done but most importantly I wanted to really thank you for setting us up with John & Barbara for th Read Moree install.
Professional, polite, fun, knowledgeable and just simply decent people doesn’t even to begin to describe them. Your company is truly blessed to have them!! What an amazing team they are.
They both explained every step of the way what was going on, explained every part being used and it’s purpose. We left for a couple hours during the install and our campground neighbor was totally impressed that even while we were not there they kept working and never missed a beat!!!
After the install was complete John & Barbara hung around for a while going over everything and making sure I had no questions. I’ll be honest.. I’m not the most mechanical person and John made sure I understood everything and the proper way to maintain it as well as making sure I had all their contact information if I ever needed anything or had a problem or questions!!
Truly one of a kind amazing people!
Don & Gayle Huggans
Weymouth, MA