Thanks for the vendor for the battery. I need to order one here soon. I plan on having 17" wheels so like you said I should have even lighter weights then you noticed. Not sure on which tire I will be using yet, so I will have to wait for that to confirm my tire/wheel weight setup. Sorry to hear about your back, I have a bad lower back and have been meaning to schedule surgery just haven't found the time to take all the time off and plan for recovery.