E&C Is happy to introduce this Two Stroke dirt bike specific pack for use with backbone style frames! This pack is designed for use specifically with our high power kits or other high power powersports applications. It's the perfect pack for two stroke motorcycles such as 125cc and 250cc motocross bikes. Paired with a 500a or 800a peak discharge BMS with Bluetooth and live data logging capabilities you will be able to pump up to 480 amps or 600A peak into your powertrain with confidence. These packs feature high current copper infused interconnections to ensure minimal voltage sag and low heat build up. Each pack is wrapped with thick fiberglass, then PVC and then encased in stainless steel for maximum protection and durability. *Pack comes equipped with QS10 discharge port and xt-90 charge port. NOTE: Shipping is included in the price listed for the lower 48 states. This battery will NOT fit into the Razor, ETM, Mototec, Funbikes or  Chassis. Specifications 76v (88.2v Max) 48ah / 60ah 21s12p 21700 Configuration 300/450A Cont. Discharge 480/600A Peak Discharge 500/800A Peak Rated ANT BMS 10.25" x 9.25" x 9" Dimensions QS10 Discharge Port XT90 Charge Port 48/60A Fast Charge Capable about 48lbs