J is the Tire and Rim Association designation for the wheel flange profile. It's the common type for most passenger car wheels now. The intent is that all wheel manufacturers use a standard shape so tires can be common.Trailer question:
rim description: 16" x 6" j (eight lug alloy wheels) I also found some rims on line while trying to answer this myself, that are alloy with steel inserts where the lug nuts contact the rim.
What does the (j) indicate on a trailer rim description? Speed rating? Weight rating?
I found something to indicate 62 mph, but that doesn't seem right?
I was told in a company email, trailer manufacturer, the rims are rated 4,060 pounds.