Well, maybe not that strange but...... a problem none the less. I want to build myself a motor bike, preferably 4-stroke and I was wondering exactly how much omph I would have to use as far as the engine is concerned to propel my rather dense carcass at reasonable speed and also be capable of carrying my 330 pound(weightlifter)frame up-hill. While I do not have any experience with engines I do have quite a bit of experience with machine-tools and I have an forever growing shop so I can make custom...pretty much anything. Since I don't really think I will find much in the forums about riders with my kind of tonnage I am posting this. Any ideas on what it will take in the line of power for a trail bike which is what I want to build?