Bought Used Helo 791s

[tyhuck]

I bought a set of 17x9 Helo wheels and I need to find out the specs on them. The previous owner didnt know anything about them because they were a dealer installed option. I know they make a couple different offsets and hub bores for that size wheel. I want to know the offset so I can determine what size tires I can move up to. And I need the hub bore diameter so I can order 2 new center caps.

 

Does anyone know if there is a serial number printed on them somewhere? The only number I saw on the one I looked at was J9X17. Can anyone help?

[Superperv23]

J9x17 is just the standard way of marking wheel size, looks like you are going to have to measure them yourself

[beave84]

Don't know what those numbers mean but here is a site to walk you through getting the info you want.

 

http://www.summitracing.com/expertadvice/s...nd-Backspacing/

[tyhuck]

I actually found a serial number in the center cap. Stupid me, I should have looked there first I guess.