Center Hole/Mounting Flange to Tire Dimension Provider ST205/75R15 Radial Trailer Tire # TA43ZR

Updated 07/11/2016 | Published 07/09/2016

Question:

Does Pilot diameter: 3.19inch refer to the size of the center hole on the wheel? My trailer was originally manufactured in 1951. I purchased it in 1979 from the gentleman that rebuilt it. Therefore I dont have a clue for model and version. The wheels that are on it are 15inch with a 5x5 bolt pattern. It had 175x?/15 tires on it when I bought it. They became hard to find and I have been running 185/65/15 tires on it. They lightly rubbed the trailer frame and I had to add spacers to stop that. This leads me to my second question... What is the depth from the back of the rim to the outside/shoulder of the tire? Thanks

asked by: Jeffrey

Helpful Expert Reply:

Pilot diameter of a wheel is the center hole diameter. So the center hole on the Contender ST205/75R15 Radial Trailer Tire # TA33ZR that you referenced is 3.19 inches.

I went out into our warehouse to grab the other dimension you asked about and found that from the back of the mounting flange of the wheel to the outer most portion of the tire measures 4 inches.

expert reply by: Jameson C