That depends, if you have a high compression V-Twin engine greater than 110ci , you may exceed 680 cranking amps and will exceed our ETX36’s or ETX680 capabilities. The ETX36/ETX680 series is limited to 680 max cranking amps. Do not use this battery for an application that exceeds this limit. We do offer the option 2 upgraded options which is the ETX900 (840PCA) or the ETX1200 (1200PCA).