Bests & Worsts Reviews from Amazon

I've built two motored bikes and am on my third. Here's the deal: You MUST enjoy problem solving and working on engines to get anything out of this kit. I never write reviews, but after seeing so many people complaining because they didn't bother to do any research before they bought the kit, I felt that I should. Yes, they do come with some cheap parts. No, they do not fit every bike. There is no plug and play bike motor kit. If you do not have sufficient mechanical ability, this is not for you. If you can fix a lawn mower this kit is for you. You will have to replace some parts, but they are inexpensive. Your first week riding it there are bound to be some issues. The guide that came with mine was very comprehensive. Much of this kit seems to have been upgraded for reliability. Many of the screws on the engine have been replaced with hardened ones. The petcock has a rubber O ring on it that I have not seen before. The box was packed well and nothing was missing or damaged. This kit is definitely a step above similarly priced, unbranded versions that you find on ebay. So please, unless you have the necessary skills to build and maintain a motorized bike, do not buy this kit and certainly do not rate it poorly because you didn't know what you were getting into. If you know what you are doing, this is a great buy. To reiterate: YOU MUST ENJOY BUILDING AND MAINTAINING ENGINES FOR THIS TO BE WORTHWHILE.