What Size Wheel Has Weight Capacity of 3,000-Lbs or More For 6K Axle with 6 on 5-1/2 Bolt Pattern

Question:

I have a home made car haul trailer with 6k axles with 6 lug 15inch rims. I want to buy rims that will support 3k weight each in the 15inch rim size. Will these do it? If they wont, what are your recommendations.

asked by: Keith

Expert Reply:

The highest weight capacity available for a 15 inch wheel with a 6 on 5-/12 inch bolt pattern is 2,830 lbs.

You will need to use a 16 inch wheel with a 6 on 5-1/2 inch bolt pattern to get a wheel that has a 3,000-lb or higher weight capacity. I have the Dexstar Conventional 16 x 6 Steel Wheel, part # AM20758, that has a 6 on 5-1/2 inch bolt pattern and a weight capacity of 3,040 lbs at 80 psi.

Also available is the Dexstar 16 x 6 White Spoke Steel Wheel, part # AM20741. This is a white spoke wheel with a 6 on 5-1/2 inch bolt pattern and a weight capacity of 3,050 lbs at 90 psi.

You will need to make sure the extra height of a 16 inch tire will fit on your home made trailer. The height on a 15 inch trailer tire will be either 27.1 inches (ST205/75-15), or 28.4 inches (ST225/75-15). The height on the taller 16 inch trailer tire will be 30.9 inches for a ST235/80-16 tire size.

I am including a couple of links to FAQ pages on trailer tires.

expert reply by: Jeff D