Electric motorcycles and scooters are plug-in
electric vehicles with two or three wheels that can be recharged from any
external source of electricity, and the electricity is stored on board in
a rechargeable battery, which powers one or more electric motors to
attain locomotion. Electric motorcycles, as distinguished from scooters, do not
have a step-through frame.
As of August 2013, there are several commercial
production electric motorcycle available in markets around the world, including
theBrammo Empulse, Zero S, Energica EGO, Quantya Strada, Yamaha EC-03,
Electric Motorsport GPR-S, Hollywood Electrics,Yo Exl, and the Lito Sora.
Following the demise of Vectrix, the primary electric scooter manufacturer currently supplying the US, Asian, and European markets (as of January 2014) is Z Electric Vehicle. Manufacturers including BMW and Honda have demonstrated concept electric scooters at the main motorcycle and scooter tradeshow, EICMA 2013 held annually in Milan. The BMW C evolution scooter is now in production in Germany and expected to go on sale in Europe in 2014. In 2012 Honda participated in European lease demonstration and driving tests for its electric scooter but has not yet announced its availability for sale. Terra Motors, a Japanese electric vehicle maker, will begin selling electric scooters in India by 2015.
Electric vs. gasoline machines
Speed: Electric and gasoline powered motorcycles and
scooters of the same size and weight are roughly comparable in
performance. In August 2013 Road and Trackevaluated a high-end
electric motorcycle as "faster and better handling than any conventionally
powered bike." Electric machines have better 0 to 60 acceleration, since
they develop full torque immediately, and without a clutch the torque is instantly
available.
Range: Electric motorcycles and scooters suffer
considerable disadvantage in range, since batteries cannot store the same
amount of energy as a tank of gas. Electric machines excel as daily
commuters traveling a fixed distance, but range anxiety precludes the
sense of the freedom of the open road that a gas machine offers. Also electric
power trades off range against speed more dramatically than gasoline power. For
instance the current longest range scooter, the Zev T 10 LRC, has a range on a
single charge of 220 km (140 mi) at 89 km/h (55 mph), but
according to the manufacturer the range drops to about 129 km (80 mi)
at 112 km/h (70 mph).
Maintenance: Electric scooters and motorcycles have
the great advantage of requiring virtually no maintenance. As Wired magazine's
transportation editor Damon Lavrinc reported after an experiment of trying to
go six months using nothing but a Zero electric motorcycle:
... one of the
great benefits of an EV is the ease of maintenance. With only a battery, a
motor, and a black box (i.e. the controller) to keep you moving, electric
motorcycles are a breeze to maintain compared to a conventional motorcycle,
what with all the lubricating and adjusting and tuning you have to do. You
basically just worry about consumables: brake pads, tires, maybe a brake fluid
flush. That’s about it.
Fuel cost: At approximately one cent per mile,
electric machines enjoy an enormous fuel cost advantage. After three months and
2,800 km (1,700 mi) of commuting on an electric motorcycle Lavrinc
reported he had spent less than $30 for electricity; on a BMW gasoline bike a
single trip of 650 km (400 mi) cost nearly the same.
Noise: Electric vehicles are far quieter than gas
powered ones, so silent they may sneak up on unwary pedestrians. Some EV's
are equipped to emit artificial noise. Popular Mechanics called
the comparative silence of electric motorcycles the greatest difference between
them and their gas counterparts, and a safety bonus because "you can hear
danger approaching." Whether a loud motorcycle is more noticeable and
thus safer than a quiet one is contested. At high speed an electric motorcycle
is quite audible, said to "sound like a spaceship."