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What Does JJ Mean When Looking at Wheel Size on Trailer


on my trailer it says that the rim is a 15x5JJ what does the 5jj stand for? Thanks


Helpful Expert Reply:

The "JJ" that you mentioned finding on the wheel size listed for the units mounted to your trailer refer to the contour of the bead seat on the wheel, essentially its shape ( "J" indicates the shape of the letter J). This isn't typically something you need to be worried about in terms of fit when looking at replacement wheels for your trailer or existing tires. More importantly, you will just need to make sure that you purchase a set that features the same bolt pattern as your hubs and the needed capacity for the loaded weight of the trailer. The "5" that comes before the "JJ" indicates the wheel's width.

I have attached a link that will take you to our available selection of 15 inch wheels that you can look through. You can use the facets on the left side of the page to filter through the different bolt patterns, constructions, and wheel styles.

helpful expert reply by:
Chris R

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