Suspension tuning depends on the bike. And for street riding, you’re probably fine with stock settings. This was more geared towards the track. For my sv650s, it’d be around 800 buckeroos to do it professionally and not using the gsx-r parts, which is what others have done. From a couple of heavier riders that have posted, the ninja 250r should handle your weight just peachy keen, but it will work a bit harder to move 240 lbs.
If there’s anything more important than my ego
around, I want it caught and shot now…