At the heart of the 2006 Jawa-CZ 125 Chopper sport motorcycle, Jawa-CZ pairs a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 12.6 HP (9.2 kW) at 8,200 rpm while maximum torque reaches 9.2 Nm (6.8 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 101.6 HP per liter and a 1,200 rpm working window between peak torque (7,000 rpm) and peak power (8,200 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the 125 Chopper measures 125 kg (276 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.92 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,370 mm (53.9 in) wheelbase engineered for quick, flickable steering geometry. The 13.5-liter (3.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 95 km/h (59 mph).
Specific Output
101.6 HP/L
Power-to-Weight
0.1 HP/kg (9.92 kg/HP)
Power Band Window
7,000–8,200 rpm
Standover Height
760 mm (29.9 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power12.6 HP (9.2 kW)) @ 8200 RPM
Torque9.2 Nm (0.9 kgf-m or 6.8 ft.lbs) @ 7000 RPM
Compression9.0:1
Bore x Stroke56.5 x 49.5 mm (2.2 x 1.9 inches)
CoolingAir
Transmission
Gearbox5-speed
Performance
Top Speed95.0 km/h (59.0 mph)
Chassis
Front SuspensionTelescopic forks 150mm
Rear SuspensionTelescopic units 80mm
Wheelbase1370 mm (53.9 inches)
Wheels & Brakes
Front Tyre-.
Front BrakesSingle disc
Front Brake Ø265 mm (10.4 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø160 mm (6.3 inches)
Dimensions & Weight
Dry Weight125.0 kg (275.6 pounds)
Power/Weight0.1008 HP/kg
Seat Height760 mm (29.9 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.
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.
