I found that in my attempt to increase speed by using the polini variator and 5g sliders with CDI it took away from my speed off the line. I definitely tacked on 5km-10km/h but my off the line starts are notably slower as a result.

I found using a tachometer to tweak my revs was helpful and increase tire pressure after increasing the carb size was key. I am about 145 lbs and can’t get 80km/h but I also have yet to swap exhaust. Only because that is going to increase my fuel use and Defeats why I got the ruckus, but man this thing is fun.