Engineered by Kymco for the scooter motorcycle segment, the 2010 Kymco Straight 125 E3 relies on a 124.6 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 7.2 HP (5.3 kW) at 8,500 rpm while maximum torque reaches 9.3 Nm (6.9 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 57.8 HP per liter and a 2,500 rpm working window between peak torque (6,000 rpm) and peak power (8,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Straight 125 E3 measures 107 kg (236 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (14.86 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,280 mm (50.4 in) wheelbase engineered for quick, flickable steering geometry. The 3.5-liter (0.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
57.8 HP/L
Power-to-Weight
0.07 HP/kg (14.86 kg/HP)
Power Band Window
6,000–8,500 rpm
Engine
Displacement124.6 ccm (7.60 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power7.2 HP (5.3 kW)) @ 8500 RPM
Torque9.3 Nm (0.9 kgf-m or 6.9 ft.lbs) @ 6000 RPM
Compression9.2:1
Bore x Stroke50.8 x 61.5 mm (2.0 x 2.4 inches)
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Chassis
Frame TypePine under bone
Front SuspensionTelescopic fork
Rear SuspensionUnit swing
Wheelbase1280 mm (50.4 inches)
Ground Clearance107 mm (4.2 inches)
Wheels & Brakes
Front Tyre2.50-17
Rear Tyre2.75-17
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Dry Weight107.0 kg (235.9 pounds)
Power/Weight0.0673 HP/kg
Overall Length1900 mm (74.8 inches)
Fuel Capacity3.50 litres (0.92 US gallons)
Other
StarterElectric & kick
Color OptionsRed, blue
Notes
Optional rear disk brake. Kymco is made by Kwang Yang Motor Company, Taiwan.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
