Available power depends on your Sting model, battery version and controller settings. Check the battery label to identify your battery:
MX3 — Greenway 60V 38.4Ah battery: up to 8.1kW.
MX4 — Greenway 60V 45Ah battery: up to 10.8kW.
MX4 — SCUD 60V 45Ah battery: up to 8.1kW.
MX5 — Greenway 72V 40Ah battery: up to 15.1kW.
Top speed depends on the battery, motor, gearing, tires, rider and riding conditions. There is no single top-speed figure that applies to all Sting models and battery versions.