Key performance
11 ch
Power
123 cc
Displacement
120 kg
Weight
100 km/h
Top speed
11.5 L
Fuel capacity
Compare the CZ 125 with: Choose a motorcycle →
Technical specifications
Changements 2008 → 1975
- Displacement
- 124 cc → 123 cc
- Power
- 12.6 ch @ 8200 tr/min (9.2 kW) → 11.0 ch @ 5750 tr/min (8.0 kW)
- Torque
- 9.2 Nm @ 7000 tr/min → —
- Engine type
- Single cylinder, four-stroke → Single cylinder, two-stroke
- Compression ratio
- 9.0:1 → 8.6:1
- Bore × stroke
- 56.5 x 49.5 mm (2.2 x 1.9 inches) → 52.0 x 58.0 mm (2.0 x 2.3 inches)
- Fuel system
- Carburettor → —
- Valve timing
- — → Port control
- Starter
- Electric & kick → —
- Gearbox
- 5-speed → 4-speed
- Front suspension
- Telescopic forks 170 mm → —
- Rear suspension
- Central unit 150 mm → —
- Front brakes
- Single disc → Expanding brake
- Rear brakes
- Single disc → Expanding brake
- Front tyre
- 2.75-19 → 2.75-18
- Rear tyre
- 3.50-16 → 3.25-18
- Seat height
- 830.00 mm → —
- Wheelbase
- 1350.00 mm → —
- Fuel capacity
- 6.50 L → 11.50 L
- Weight
- — → 120.00 kg
- Dry weight
- 99.00 kg → —
Engine
- Displacement
- 123 cc
- Power
- 11.0 ch @ 5750 tr/min (8.0 kW)
- Engine type
- Single cylinder, two-stroke
- Cooling
- Air
- Compression ratio
- 8.6:1
- Bore × stroke
- 52.0 x 58.0 mm (2.0 x 2.3 inches)
- Valve timing
- Port control
Chassis
- Gearbox
- 4-speed
- Final drive
- Chain (final drive)
Brakes
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Front tyre
- 2.75-18
- Rear tyre
- 3.25-18
Dimensions
- Fuel capacity
- 11.50 L
- Weight
- 120.00 kg
Indicators & positioning
Weight-to-power ratio
0.09 ch/kg
Volumetric power
89.4 ch/L
In category Sport · 62-246cc displacement (1562 motorcycles compared)
Power 11 ch Top 59%
7 ch median 12 ch 24 ch
Weight 120 kg Lighter than 71%
104 kg median 131 kg 159 kg
P/W ratio 0.09 ch/kg Top 62%
0.07 median 0.10 0.19 ch/kg
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