i was wonder the width more so that the height of the tire. Like putting 50's or 60's all the way around rather that the stock. Trying to make it a little stocky.
Factory size on my NOX is a 235-60x17.
That equates to 235mm wide, sidewall aspect is 60% of the tire width. (141mm tall)
17" rim diameter.
You could go to a 245-50x17 and have more width, and maintain the same height, as to not change speedo readings.
The issue with the NOX is the front strut housings/lower spring perches are seriously close to the stock tire width, unless you replace the rims with a rim with less inset, and more offset from the hub.