Limitations of moon discs

[freebeard]

I was thinking that a compressible washer would act like a lock washer. But why not use a lock washer under the screw head, and a nylon washer between the disk and wheel that has a small enough hole so that the screw thread cuts into it? Then when you take the disk off the screws would remain in place.

I think the bigger problem is not the screws loosening; it's when the wheel flexes the screw cuts the hole bigger, until the whole thing falls off.

[cowmeat]

Yeah I might try that. I want them easily removable to access the air valve . . . . .
But then again, maybe I can just make an air valve extension to go to the inside of the rim instead. Then the only time I would ever need to remove the moons is if I rotated the tires or changed a flat. Hmmmmmmm, has anybody done this?

[freebeard]

Yes, so much so that putting a hole in a Moon disk and letting the valve stem stick though makes hot rodders point and laugh. But they would drill out the rivets and reverse the rim on the center to increase the offset.

The inside of my rims are so inaccessible they might as well be on the dark side of the Moon.

[orange4boy]

1. Use low strength loctite instead of silicone.

2. Use allen or torx head screws to reduce the chance of theft or head stripping when removing

3. You can buy longer, dog leg valve stems.

4. If the holes wear out, drill new ones. (Has not happened to me.)

5. The hot rodders already laugh at us

D. Who cares.

[Madact]

If you want to split the difference between "ugly valve holes in the moon discs" and "taking the discs off is such a hassle", you could always use aluminium or metallised mylar tape over the holes (presuming the valves don't stick 'out' too far).

e.g. http://www.amazon.com/3M-Foil-Tape-3...5337158&sr=1-3
Amazon.com: Metallic Film Tape (Mylar) 1" x 36 yards Several Colors, Silver: Patio, Lawn & Garden