Re: New Build (raw engine)
I got nothing but hills in Colorado and the 2 stroke engines do quite well provided you run a 48 or 50 tooth sprocket but your top speed on straight away is maxed out at 20mph is you are lucky.
With the shifter kit from SBP, hills are just as easy and top speed doesn't suffer. One thing I will say, the new 65-67cc engines are weaker than the older 70cc engines. I miss the old bushing engines, they were more powerful but did vibrate quite a bit.