They gear the trails down from the grom to do better offroad, hence the 50mph stated limit, the cub's faster top speed by design but it's just gearing.
I'd love to do the dual sprocket like the real early ones. 2nd sprocket for offroad, right next to the 1st. just add a length of chain with a 2nd masterlink
Derek blackpipes here just snagged a CT90 that I love. theyre seriously dream bikes.
I always think aobut what bike i'd want if I were going to get a new(ish) bike and my tops are WR250, Zero FX and the trail125. they do all the things I want/need. I'm not touring, Im rarely on the interstate, i wanna bop thru some trails and cruise around town with my friends being a butthead.
As for the mileage, yeah theyre crazy. my old cub I remember some 200+ mile days only filling once, on a 0.8g tank. I rode to athens from atlanta and back, just under 200 miles on a gallon of gas. well, like 180, but still. it's fucking crazy. that's 1/10th the cost of driving my car and 20x more fun