On the 19 tooth sprocket.....my friend thrashes his bike mercilessly.....so no worries about the clutch...he's run it like this for years now.
Harley's....my 86 sporty was a chain drive..4 speed.....that fact that I persisted was a triumph( no pun intended) of image over practicality.
I couldn't even get to my work without filling the tank every morning.
My last sporty was bought new in 04.....when I discovered I'd now need to split the crankcases if I wanted to do any gearbox work I called it a day with these.
Oh and a lot of them jumped out of first gear if I recall...not enough undercut on the cog.