I know you guys have already passed this but i just wanna add my 2 cents. But anyways GET A REVOLUTION! I have a 12 volt and am just about to upgrade to the new x board 12volt with the new polystern (i think or i just made that up ) frame. It helps me soooo much. I can't tell you how many times i've needed one before i bought it. I love my Revvy!