Yamaha EC-03 - 2011 Specifications and Reviews

The 2011 Yamaha EC-03 is a compact electric scooter designed for urban commuters seeking eco-friendly, low-cost city transportation. With a top speed of 45 km/h and lightweight aluminum frame, it excels in congested urban environments. Its automatic transmission and nimble handling make it ideal for riders prioritizing convenience and sustainability over performance.

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Engine and Transmission Specifications

GearboxAutomatic
Cooling systemAir
Top speed45.0 km/h (28.0 mph)
Torque9.60 Nm (1.0 kgf-m or 7.1 ft.lbs) @ 280
Power1.88
Engine typeElectric

CategoryScooter
Year2011
ModelYamaha EC-03

Brakes, suspension, Frame and wheels

Rear brakes diameter150 mm (5.9 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter95 mm (3.7 inches)
Front brakesDouble disc
Rear tyre dimensions60/100-R12
Front tyre dimensions60/100-R12
Rear suspensionMono shock, Swingarm
Front suspensionCartridge fork
Frame typealuminum frame
 
 

Physical measures and capacities

Ground clearance110 mm (4.3 inches)
Overall width600 mm (23.6 inches)
Overall length1,565 mm (61.6 inches)
Overall height990 mm (39.0 inches)
Seat height745 mm (29.3 inches) If adjustable, lowest setting.
Power/weight ratio0.0336 HP/kg
Dry weight56.0 kg (123.5 pounds)
 
 

Other specs

Factory warranty6 Month (Limited Factory Warranty)
LightDual 30W Krypton Multi-reflector Headlights and 21/5W Brake light
Fuel capacity14.38 litres (3.80 gallons)
Rear tyre25/10-12
Front tyre25/8-12
Rear SuspensionSwing Arm, 7.1” w/ 5-way Preload Adjustment
Front SuspensionIndependent Double Wishbone, 6.3” w/ 5-way Preload Adjustment
Driveline2WD; Yamaha Ultramatic® V-Belt / Forward, Neut.,Rev.
ClutchEngine Braking
Transmission type,final driveShaft drive (cardan)
IgnitionDC - CDI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemCarburettor. Mikuni 33mm BSR
Bore x Stroke83.0 x 64.5 mm (3.3 x 2.5 inches)
Compression9.2:1
ModelYamaha Bruin 350
Color optionsWhite/black, Black
StarterElectric

Rider Fit Visualizer

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 745mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2011 Yamaha EC-03, with a moderate knee angle of around 95 degrees and a slightly forward riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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