The YG51913 is a high quality battery from Numax. The cold cranking current of the battery is 300 A. The dimensions of the product are 183 x 79 x 171 mm. You should use the dimensions of your old battery as a guide for your selection.Durable Gel technology for your vehicleThe YG51913 has a capacity of 21 Ah. The higher the value, the more electrical charge can be stored in the battery.Gel batteries like the YG51913 are maintenance-free and vibration-resistant, perfect for motorcycles. They provide consistent starting power in extreme conditions.You should consider this when buyingBefore you buy, check that the circuit and polarity of your new battery are identical to the values of the old model. The circuit shows whether the positive pole is on the right or left of the battery. To determine this, position the battery so that the poles are facing you. With the YG51913, the circuit is 0, so the positive pole is on the right.