I've been into this for about 4 hours now . I just purchased a new Kustom Kruiser Roadster. So if I decide to go with a gas engine, can anybody suggest the best one out there ? I just looked in eBay. What do you think about "Livefastmotors" They claim to be the "best" from China ? I'm always leary about a lot of "hype" marketing that puts down the other guy and braggs about themself. If I really go with this I'd like to purchase two more Roadster cruisers, set one up with an 8 or 14 speed internal gear drive rear hub (pedal drive) , and another one with an electric motor. Any sugestions for a good electric bicycle motor ?http://motorbicycling.com/images/smilies/chopper_smilie.gif