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Feann Torr15 Jul 2010
NEWS

Yamaha unleashes electric scooter

The new EC-03 has just been launched in Japan, paving the way for a new range of electric motorcycles


Yahama is charging into the electric vehicle era with plans to develop a range of zero emission motorcycles over the next half decade.


The first model to hit the streets is a compact scooter weighing just 56kg, the EC-03 (pictured).


Launched in Japan this week, the new scooter will be the first of several all-electric two-wheelers from the company, a range that will initially comprise scooters but is expected to evolve into fully-fledged motorcycles by 2015.


Could we see an electric YZF-R6 half-way through the decade?


One of the sticking points for electric bikes, and this is also a big issue facing the emerging electric car market, is the travelling range. Or lack thereof.


The Yamaha EC-03 has a range of 43 kilometres when travelling at around 30km/h with fully charged lithium-ion batteries.


Yamaha says that despite a low cruising range, it wants to get a foothold on the emerging electric vehicle market, and this is just a first step.


Peak power from the electric motor is 1.9hp (1.4kW), but almost 10Nm of torque is on tap which should ensure snappy acceleration. There's a standard mode and also a power mode, designed for "hilly roads".


Charging the EC-03's batteries takes around six hours, and the scooter costs ¥ 252,000 (A$3250). Yamaha expects to sell around 1000 units in Japan, and will launch the EC-03 in Europe in 2011.


No word on whether it will be coming to Australia at this stage.


Yamaha EC-03 specifications
Length × Width × Height: 1,565 mm × 600mm × 990mm
Minimum ground clearance: 110mm
Seat height: 745mm
Vehicle weight: ( battery installed ) 56kg
Mileage per charge: ( fixed location ) 43km (30km/h)
Minimum turning radius: 1.7m
Motor type: AC synchronous motor
Rated output: 0.58kW
Maximum output: 1.4kW (1.9PS) / 2,550 r / min
Maximum torque: 9.6Nm 280r/min
Battery Type: Lithium
Battery voltage / capacity: 50V-14Ah (1h)
Battery Power: Constant voltage constant current
Charging time: About 6 hours
Drive system: Spur gear ( planetary speed reducer )
Primary reduction ratio: 5.647 ( 17/31/79 )
Frame format: Backbone
Caster / Trail: 25 ° 00 '/ 75mm
Tyre size ( front / rear): 60/100-12 36J ( tube ) / 60/100-12 36J ( Tube)
Braking device type (front): Mechanical leading trailing (drums)
Braking device format (rear): Mechanical leading trailing (drums)
Suspension system ( front / rear): Telescopic / Swing Unit
Headlight: Halogen bulb 12V, 40W/40W × 1 

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Written byFeann Torr
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