I just put a video of my motorized bike on youtube. I am new to the forum, but not to motorized bicycling. Started with a 66cc kit, just couldnt take the maintenece. But I am now riding a Powered Pedals Motorized bike. I put over 3,000 miles on it with a bent rim, and still no spoke issues.
They are pre made, or they can put one on your bike, I got this for $900 otd. Anyway it does 40 mph and i weigh 195lbs. The video is on youtube to prove it.