You got a Cafe Racer or Custom Motorcycle that you are building but you're limited on space. Well Antigravity has the solution for you. Make no mistake about the size of this battery from Antigravity. The Antigravity 12-cell is very small but capable of incredible starting power. This model is a perfect replacement for the typical 1000-1200cc street bikes. It offers extreme weight saving over stock lead acid batteries but has almost twice the cranking amps of the standard battery found in a 1000cc bikes.