Yuasa GYZ20L High Performance Maintenance Free AGM 12-Volt BatteryThe GYZ series battery is the most powerful, compact Absorbed Glass Mat (AGM) battery available for powersport applications. Advanced lead calcium technology that holds its specific gravity more than 3 times longer than conventional lead antimony batteries. This means much longer periods between charges when the battery is used in a standby mode, like winter storage. This Part Fits: Year Make Model Submodel 1997 2002 Buell M2 Cyclone Base 1997 2001