the walmart by my house just got a shipment of thier cheap schwinns in. they are $89. all the walmarts get these at the begining of the summer. you can buy one of these and stick a motor on it and sell it on craigslist. i did it last year. i bought the brand new bike from walmart and a brand new motor kit off ebay and had less then $200 in it and sold it for $425 on craigslist. this is a good way to fund your shift kit project or what ever your working on. you will sell it to someone that has no mechanical skills. people dont want to buy a used bike with a motor on it. take a pic of it with the cardbaord advertisment still in the front wheel and people will love it. with summer coming up now is the time to sell.