Next up is the 4 stroke 49cc kit. They are easier to run and maintain over the 2 strokes. I’ll also offer they are more reliable. You can easily modify the 2 strokes to go faster than the 4 stroke, 49cc kits. You can get 35mph and better low end torque on the 4 stroke setups.
You can get the 4 stroke kits HERE-https://youtu.be/f23aVgmXTJk
I suggest you get the kit that has the belt drive transmission as the chaun drive setups are trash. You can tell the difference as the belt drive setups have a black, plastic cover on the left side of the engine/transmission. The cover protects you from the belt