Built around Yamaha's scooter motorcycle platform, the 2007 Yamaha Aerox Race Replica features a 49 cc (3 cu in) liquid-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 2.7 HP (2 kW) at 6,500 rpm while maximum torque reaches 3.7 Nm (2.7 lb-ft) at 4,500 rpm, transferring power to the rear wheel through a automatic gearbox. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches) with a 7.4:1 compression ratio.
On the scales, the Aerox Race Replica measures 92 kg (203 lbs) dry. Rider ergonomics and chassis geometry center around a 828 mm (32.6 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,256 mm (49.4 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 2006 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power Band Window
4,500–6,500 rpm
Standover Height
828 mm (32.6 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power2.7 HP (2.0 kW)) @ 6500 RPM
Torque3.7 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 4500 RPM
Compression7.4:1
Bore x Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor. Gurtner PY-12
IgnitionCDI
CoolingLiquid
Transmission
GearboxAutomatic
Chassis
Front SuspensionTelescopic fork
Rear Suspensionswingarm with shock
Wheelbase1256 mm (49.4 inches)
Ground Clearance185 mm (7.3 inches)
Wheels & Brakes
Front Tyre130/60-13
Rear Tyre140/60-13
Front BrakesSingle disc
Front Brake Ø190 mm (7.5 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight92.0 kg (202.8 pounds)
Power/Weight0.0291 HP/kg
Seat Height828 mm (32.6 inches) If adjustable, lowest setting.
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
