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Increasing performance for competition usually means improving the motorcycle or ATV's power-to-weight ratio by either adding more power or taking away weight. However, this can be expensive. One of the easiest and least expensive ways to eliminate pounds of weight is often overlooked - the battery. Now there is a much lighter alternative, the lithium-iron-phosphate (LiFePO4 ) batteries from Antigravity Batteries®. While a traditional YTZ®10 lead/acid battery for a YZF-R1 or YZF-R6 weighs about 8 lb, Antigravity's equivalent lithium-iron battery weighs about 2 lb, about 75% lighter and an easy savings of nearly 6 lb.!Additional Features: