Can Wheels With An Offset Be Replaced By Wheels Without An Offset  

Most of the trailer tires will have what is called a zero offset. That means that the direct center of the wheel and tire is measured to where the wheel mounts to the hub face. If you remove your tire and wheel and measure from the back edge of…

The suitable replacement for H-78 tires would be the tire size 225/75-15 which is 1.3 inches different in diameter from the 205/75-15 tires. I suppose you could get away with the 205/75-15 to get by in an emergency or temporary situation. However,…

You can certainly change your trailer tires to a narrower 205mm width as long as your wheels are 6- or 6-1/2-inches in width. These are the only size wheels that can take both 225mm and 205mm tire sizes. Please refer to the linked article on tire…

The tire sizes you mention are considered to be obsolete sizes. The 8.25-15 tire would have an 8-1/4 inch width and a diameter around 28-1/2 inches. The 7.75-15 tire would be around 7-3/4 inches wide with an approximate diameter of 27-3/4 inches.…

You should never change the wheel offset on your trailer or use different offsets on tandem axle trailers. Your axles should match, as should your tires. Your wheels can differ in style, but they should not differ in offset. This basically means your…

Most trailer wheels do have a zero offset to evenly distribute the weight of the trailer on the wheels, however, that does not mean all trailer wheels must have a zero offset. As long as there is enough clearance between the inside of your tire and…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…