Kymco UK has this to say about the 300i;
"That can Achieve a top speed of with a 90mph @ 8000rpm Powerful 29.5bhp"
That's the power rating for the Downtown, the People should be around 28hp.
I've seen 100mph with a tail wind on a test bike with 6000km (4k miles) on it.
Going the other way, it would still do over 90mph.
It was a bit faster then the Downtown test bike I had for a weekend (by about 5mph).
My own DT300 is a lot slower with it's huge 50l topcase and a big windscreen, even with
the malossi multivar and dr pulley sliders. Often won't go over 85mph.