Cat SX2/3 12mm Hex Nuts??

[Swerving]

Guys, I am thinking of getting one of the buggies, at our club we run them on Tarmac with control wheels/tyres, that use the regular Hex nut fitting.

I am informed that Schumacher don't use Hex Nuts, but on reading a manual online somehwere I believe I read that there is a mod to fit them.

Can anyone shed any light on this before I spend my hard earned cash??

Cheers

Peter