The Zero SR is an electric motorcycle made by Zero Motorcycles. It has a top speed of 124 mph, and it can travel up to 201 miles on a single charge. It features a 120 kW motor, a Z-ForceĀ® 75-7 passively air-cooled motor, and a power pack with a range of up to 8.5 kWh. The Zero SR also features a variety of advanced rider aids, such as a traction control system, a regenerative braking system, and a Bosch Motorcycle Stability Control system.