[suicideneil]

I see what you're getting at now. You would have to drill 3 or 4 holes in the hex for the rivet to pass though, but that is also going to mean drilling though the center part of the rim- I can see that snapping off/out completely under acceleration.

I think switching to larger 17 or 23mm hexes is the easiest thing to do, just means buying the adapters and rims to match.