What are the odds of getting two bad shifting bikes...back to back ?
Astronomical.

As RedHawks noted I had found my shifter bolt tight but it still was sloppy.
I had to tighten to extremes to take the slop out.

If you find the gap all closed up when tightening you can take a hacksaw blade
And cut a sliver out so that there is still a gap after tightening

BTW,my bike shifts as beautifully as my Vstrom which is sweet.

Ditto on Detours post ... my few incidents have been the result of sloppy rider habits - not the quality of the bike or its' tranny.

My shifter was wobbly also. The bolt was basically tight but it wasn't pinched on the shaft.
I've had no shifting issues though, even before I tightened it. Shifts fine. Just like my other bikes.

I'm not discounting anyone's problems, but I haven't had any shifting problems whatsoever with my RX3. :shrug:

My shifter is tight. There is definitely an issue in my new engine as 5-6th shifting is still odd. With that said it has not fallen out of gear yet. Gerry hasn't taken my defect engine apart yet but said he will email be when he does. He also said no one has called about the shifting issue or falling out of gear. You should call if you are so he is aware of it.

I know this is an old thread but this video from MC Garage just got posted which speaks about it. I've had this occur on mine maybe 5 times since I've owned it. Didn't panic and just downshifted and then upshifted.

https://youtu.be/sAsWiiHjLsg

There are a few bikes besides mine that have the same 5-6 issue. It has nothing to do with lazy shifting. I own 5 bikes. The others shift just fine. I still have and ride the RX3, 5th to 6th is still wonky. It has not fallen out of gear yet since the engine change.

This issue seems to be isolated to the first back of 2016 RX3s that shipped into CSC. My bike has the exact same issue - I'm quite sure it is a manufacturing defect. If you are not determined to get two clicks and a forceful up-shift from 5-6 you will find that false neutral and it may shock you when going around a corner at speed. Trust me this is not pilot error as it's happened several times to me and I own several bikes and have been riding for 40+ years.