Newbie with question

Welcome to the forum Signedinwhite ! A stock motor at your weight will run fine. Preferred sprocket size voted by many is 40 teeth.

Welcome to the forum. A cruiser frame is a good choice, I think. And a heavy, strong frame makes for a safe ride. Think, too, about brakes, especially in hilly country... now you no longer have a bicycle. Now it is a new kinda critter. Stay safe and have fun!
SB

in theory, the heavier the bike, the faster top speed it will have. it just takes longer and more energy to get it there, while a lighter bike may accelerate to top speed faster, but requires more energy to keep it going that fast. kinda like a go-kart will blow a car off the line, but let off the gas and the gokart stops, while the mass of the car will keep it rolling.

all my bikes are heavy duty steel, american made, vintage cruisers, full fendered, chaingaurds, etc, and i don't worry about the weight at all. i believe that the more solid the bike, the better the ride, and the more stable at high speed.

i weigh 135, and i dunno what my bike weighs, but it ain't light, and it goes really fast.