Tire and Wheel Combination Weight Capacity Based on Tire Max Load and Wheel Max Load Rating

Question

Question:

Are the tire and wheel load ratings on the following product page accurate?AM32156 Specifically, the tire is stated as Load Range C, with a maximum load of 1,925 lb. at 60 psi. Most load range C tires are rated at 1,760 lb. at 50 psi. The wheel capacity is rated at 1,870 lbs., which is less than the tire assuming 1,925 for the tire. This seems like a poor match for the wheel and tire, especially since a typical user would assume the tire is mounted on a rim that has an equal or higher load rating. Thank you for your assistance.

asked by: Mike J

0

Expert Reply:

The Karrier ST205/75R14 Radial Trailer Tire with 14" Galvanized Wheel - 5 on 4-1/2 - Load Range C # AM32156 does have a tire rated at 1,925 lbs at 60 psi. It is tire # AM10234 which I've linked for you to check out. The wheel is a lesser rated capacity of 1,870 lbs as you stated and is the Steel Spoke Trailer Wheel - 14" x 6" Rim - 5 on 4-1/2 - Galvanized Finish # AM20354.

We don't make the combinations, the manufacturer does that part, but this combination will absolutely have the max capacity rating of 1,870 lbs as you will be limited by the weaker of the two components. This weight rating is very typical of the 14-inch wheels, so you will want to pay attention to the lowest rating, which is why we do state both, in each combination.

For instance, the Provider ST205/75R14 Radial Trailer Tire w/ 14" White Spoke Wheel - 5 on 4-1/2 - Load Range C # TTWA14RWS will have a max capacity of 1,760 lbs based on the tire even though the wheel is rated for 1,870 lbs.

expert reply by: Jason S

0

Answer 1

Based on my research on the Karavan Trailer website most of their snowmobile trailers such as their Ultra-101-12-WB use hubs with a 5-on-4-1/2-inch bolt pattern. The supplied wheels are 14-inch and are fitted with an ST205/75D14-inch tire, which is…

view full answer...

Answer 2

Your F78-14 size tires are the same size as the current 205/75-14 tire size so that's what you'll want to replace them with. I recommend going with the Karrier ST205/75R14 Radial Trailer Tire - Load Range D, #AM10235 If you need to…

view full answer...

Answer 3

You will always want the tire size, load range, and construction, to match on your trailer. Using tires that are different can lead to more of a load being put on the smaller size tire/tires and cause tire problems to occur. In your case the tire…

view full answer...

Answer 4

If the total weight of your pop up camper is 3,300 lbs then you would need a wheel/tire combo that at least has the capacity of 1,650 lbs. The closest tire we have to that capacity in your size is the part #AM10210 which has a 1,610 lbs at 65 psi…

view full answer...

Answer 5

Assuming that by 4.5 hole, you mean that your hub has a 5 lug on 4-1/2 inch bolt circle, we do indeed have a 14 inch diameter wheel that has a 2.62 (2-5/8) inch diameter pilot hole. The Dexstar 14 x 5-1/2 conventional steel wheel, part #AM20304 would…

view full answer...

Answer 6

The Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Stainless Steel - 3,500 lbs #K2R35S will require upgrading your wheels to 14 inch. You can then use the Karrier ST205/75R14 Radial Trailer Tire with 14" Galvanized Wheel - 5 on 4-1/2 -…

view full answer...

Answer 7

There are several advantages to having a radial tire over a bias ply tire. Radial tires track better and offer more contact with the ground. More ground contact improves traction and will provide better tread wear. Radial tires are also have more…

view full answer...

Answer 8

The Extra Offset Trailer Spare Tire Carrier by Dutton-Lainson part #DL22145 comes with the hardware needed to attach the carrier to the frame as well as the tire to the carrier. The included bolts are grade 5.

view full answer...

Answer 9

We do have a great replacement for you, but the Loadstar ST205/75D14 Bias Trailer Tire with 14" Galvanized Wheel #AM3S450 is not the same tire as the ST205/75R14 you have now. The "D" in the ST205/75D14 stands for a bias tire, which is…

view full answer...

Answer 10

Are you sure the tire size isn't A78-13 as that's a very common tire size and I could see the 8 looking like a zero if it was old and worn out. The modern size for this on a 4 bolt wheel would be the part #AM3S030 which has the tire size…

view full answer...

Answer 11

The highest ply rating tire we have for a 13 inch wheel is 8 and is the Loadstar Tire ST185/80D13 part #AM1ST79 which has a weight capacity of 1,710 lbs at 65 psi. More important than ply rating is making sure the tire has enough weight capacity for…

view full answer...

Answer 12

There are three things you need to look for when choosing a spare tire for your trailer and that is a radial ply, load range c rating, and 205/75-14 size. The least expensive spare wheel/tire combo we have that meets the above and comes with a…

view full answer...