Originally posted by baih
ok great, mine does it too. now this is going to bug me also.
the axle does move as you described. i will put a battery in this weekend and see if it smoothes out at different speeds.
I'll certainly be interested to know what happens because at slow speed (that being what you can generate by pushing or spinning the wheels) it makes a hell of a rattle.
So I hope it smooths out at speed because cutting 1/4 mm spacers to take out the slop is something I'd rather not have to do. And it takes away free wheeling ability (but not smoothness) of the transmission when I do.