[Ninja P]

Is anyone here already suffering from a Slipped Disc because the rear shock of n400 is so bouncy?

 

[Watcher905]

I haven't taken delivery of my bike yet. Curious, how much do you weigh and what are the conditions of the roads you take?

 

[Ninja P]

About 78kg, mixed asphalt and concrete pavement

 

[jonfonts]

I've honestly felt it to be pretty smooth, but to be fair, I haven't taken it out yet much since we're still getting snow here and there.

 

[Kiwi Rider]

I've honestly felt it to be pretty smooth, but to be fair, I haven't taken it out yet much since we're still getting snow here and there.

+1 its no worse than any other 300cc bike built to a price point with cheapish suspension.
What position is your rear preload adjuster set on? Position 2 is standard. You could try putting it on position 1 to see if that helps.

 

[atonyshepherd]

Mine was super sloppy at the stock preload setting. I bumped it up 2 settings and it's made an enormous difference for the better. It definitely feels significantly stiffer.