It was a joke... nevermind... You're not in your best mood today are you? lol
Look, you come in here and say you have some batteries and want to make an electric motorcycle, so you need a rolling chassis... my point is that the chassis should be the least of your concern at this time... have you figured out the what kind of motor your batteries will be able to run? for how long? with what type of performance characteristics once it has to pull 500lbs of chassis/rider/etc...? How much will this motor cost? Where will you get it? What's your overall expectations for this motorcycle? 1 mile @ 25mph? 200miles @ 80mph? what is your overall budget? etc etc...
If making an electric motorcycle was as easy as taking a laptop (we don't know what kind of batteries were given to you) lithium ion battery, any electric motor and slapping all that in a rolling chassis, I think we'd have seen a few of them around already...
Not trying to be an ass, just trying to figure out how much you've thought this through... if my questions are all stupid, then please accept my apologies and good luck with your project... I look forward to seeing the end result.