I had this issue, figuring out the exact correct spacing, which is finicky on MBS, fixed it.
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I will try it out, thanks.
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So I tried to fine tune the spacing between wheel adapter and wheel gear, and there is an improvement in the free roll i.e. drag is about the same as with the other wheel.
Now another issue, after a ride yesterday, I opened the drive again to check and the screws that hold the adapter plate to the POM gear untighten themselves while riding I lost 1 and another one was almost totally unscrewed.
Now I understood that loctite can’t be used on POM but what can I do to prevent them coming apart.
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For now I tried a tad longer screws as I use more spacers maybe there wasn’t enough engaged threads.
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With how massive Loctite’s catalog is, I would be shocked if they did not have a threadlocker designed for bonding metal screws to plastic threads. Might not be something easily obtained though.
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You wouldn’t even believe how worst it would be to get that down here.
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Just about nothing adheres to POM though, without surface prep. So you’d be looking for metal to specialty plastic threadlocker - a bit of a needle in a haystack.
Super glue / cyanoacrylate is the usual answer, but that doesn’t work on Teflon, HDPE, acetal (POM), and all the low surface energy plastics.
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For metal screws to POM, would dipping the screw in Acetone and then giving it a decent bit of torque, or a very small amount of acetone in the hole/threads & a tiny patch of epoxy (like factory loctite’d screw patch size) on the screw work? I feel like it should.
Sort of like how to make unbreakable (in the sense that they’re as strong as a stock o-ring) custom o-rings - cut o-rings to size, dip each end in acetone, then superglue ends together.
Butyl tape on the threads may work too
duct tape over the screw heads lol
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I haven’t thiught of that but that’s not a bad idea actually.
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These drives have threads in PLASTIC? 
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Wheel gear is POM and is attached to an adapter which is then attached to the wheel
I don’t think other drives using POM gears have a different approach do they?
A bit of glue (even loctite maybe ) on the head of the screw, so it’s glues to the wheel adapter should be enough I guess. This way it’s metal on metal.
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I suppose the bolt could go through the wheel gear, and then just use a simple bolt and nut setup. I also don’t get why there’s thread in the plastic. Maybe Moon just didn’t forsee it as being a problem 
(Although tbf you are the first I’ve heard of this happening to)
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3DS has threads on the aluminum adapter, not the plastic gear.
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oh and how do you secure the gear to the adapter?
Maybe I should not assume stuff indont know about 
, I didn’t really think much of it until I saw I was missing a screw.
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Bolt goes in from the gear side and bolts into the adapter, after assembly the wheel bolts to the wheel adapter.
I thought that’s the only way to do it
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Interesting, to be fair as @rusins pointed out I am the only one it happened to, which doesn’t even surprise me anymore 
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Murphy’s law = tamatoa’s law
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If the wheel gear moves towards the lid your wheel spacer isn’t correct, it should never be forced towards the lid, also there should be no need for super glue or loctite for the wheel gear it being made out of POM makes it self tightening, just make it hand tight and it should be fine by itself.
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