Zero S Motorcycle Charges Off A Household Outlet
MONTE-CARLO, MONACO - We took this photograph of the electric 'Zero S' motorcycle outside the EVER Show (EVER: Ecologic Vehicles and Renewable Energies Show) held in Monaco at the Grimaldi Forum in late March 2010. The 'Zero S' motorcycle is manufactured by Zero Motorcycles Inc. and the 'S' is the 'Street' version in their model line-up. A 'Dirt' and 'Dual Sport' version are also available. The 'Zero S' is built on Zero Motorcycles' custom designed aircraft grade aluminium frame, and the curb weight of the motorcycle with battery pack is 273 pounds (123.8 kg).
The Zero S motorcycle's powertrain consists of a low-weight permanent magnet electric motor with a forced air induction cooling system running through the core of the motor. The battery pack for the Zero S is a proprietary Z-Force lithium-ion type with a charge capacity of 4 kWh, giving the motorcycle an operating range of 50 miles (80 km). The battery pack can be charged off of a 110V or 220V household outlet and the time required to fully charge the battery is under 4 hours.
From a performance standpoint, the Zero S is capable of reaching a top speed of 67 mph (105 km/h), and the transmission is a clutchless single speed type operating as a direct chain drive off of the electric motor. The front and rear suspension travel is 8 inches, and the front braking system is a hand actuated 2 piston hydraulic type with the rear being a foot actuated single piston unit. Both the front and rear rotors on the motorcycle are manufactured using stainless steel and are drilled to improve cooling capability. The tires on the motorcycle have the dimensions (110/70-16) on the front and (140/70-16) on the rear.
Zero Motorcycles Inc. says that the electric operation charging costs of the Zero S are a very low 1 cent ($.01) per mile. Because the motorcycle has a lightweight construction, the Zero S has a very responsive standing start acceleration and the electric motor responds instantaneously to the throttle input.