Non-treaded wheels?

[Siri]

Originally Posted by gorrilla

The failure would happen when one of the ends would come loose then take the rest with it. Each end had two rivets, in between each spoke would also have two. Most of the time the rivets did not come out, the tread just tore a hole in the rubber around the rivet.

This is odd. It does sound like possibly too many rivets (as others have said). If you're talking about plaction wheels, we started out just pre-stapleing the ends together and slipping them over the disassembled wheels. These preformed just fine (no detrimental slipping or anything), but to avoid complete disassembly we started using a 4 screw method. Shown here, we've yet to have any problems with them. Might be worth a try. If you decide to and still have problems, feel free to drop me a PM. There might be a deeper issue here (though I have no idea what as of yet).