Using 5x127 to 6x139 spacers/adaptor.

What do you guys think about this 5x127 to 6x139 spacers/adapter? I am gonna use 20x12. not sure it would be ideal.

my main reason is just, when I dont like the rims anymore I can sell it to anyone if its 6x139. if its standard 5x127 for jeeps I will be stuck with it forever.

20x12 -44m seems to be very wide already and I am not sure if I should use the spacer/apadter. I am torn.

If it's a cheapy eBay one or some off-brand one I wouldn't trust it. There are a few threads on here about the studs breaking off of the cheap import spacers. Look into SpiderTrax. They use American-made studs and quality aluminum.

I forgot the guy's name but he bought some ATX beadlocks for cheap but they were a different bolt pattern. He purchased some custom wheel adaptors/spacers so that they would mount to the JK's 5 on 5 pattern.

Edit: I think this is the company he went with. http://www.motorsport-tech.com/wheel_adapters.html