[bwader]

I mainly ride on 55mph highway and can maintain 60-65mph on flat ground in 5th gear even at my weight of 250. 16 tooth front sprocket too

Top speed for me has been 72mph on GPS and I had to be in 4th to get there and maintain it. WOT in 5th gear is about 65mph depending on wind and slope.

On a faster highway I just stay in the slow lane or with people going the speed limit up to 65mph or else I got to shift to 4th to accelerate then back to 5th to maintain.

I'm sure your lighter friend will do fine on the highway on the GZ. But like most you start thinking about slightly bigger bikes that are better for suited for highway riding the more highway riding you do.

I'm loving my GZ at 7,200 miles now and average 60-65mpg, I just paid state taxes and fees and it came to $8. Yes eight dollars. Virginia tax assessed value of my bike is $750 and tax credit for smaller vehicles and cars you get a discount, so mine I just had an $8 fee and free taxes for this year. compared to my car which they assessed at 3,500 and was $90 this year with tax credits.