At a very small 4.375 x 2.37 x 3.75 inches (LxWxH to top of terminals) this lightweight motorcycle battery offers extreme power in the most compact size in Lithium Motorsport batteries. The Antigravity AG801 weighs only 1.56 lbs and is best used for applications where extreme weight loss and ultra compact size are desired. The loss of large amounts of weight allows for faster acceleration, shorter braking distances, better overall handling and even mileage improvements - all beneficial for the everyday rider and racer. The AG-801 Lithium battery can be used for bikes from 600cc street use and 1200cc race use.