| MODEL | HONDA CB 125K 1972 - 1975 |
| Year | 1972 - 1975 |
| Engine Type | Four stroke, parallel twin, OHC, 2 valves per cylinder |
| Displacement / Capacity | 124 cc / 7.6 cu in |
| Bore X Stroke | 44 x 41 mm |
| Compression Ratio | 9.4:1 |
| Cooling System | Air cooled |
| Max Power | 10.9 kW / 15 hp @ 10500 rpm |
| Max Torque | 10.3 Nm / 1.05 kgf-m / 7.5 lb-ft @ 9000 rpm |
| Ignition | Battery and coil |
| Induction | 2x Keihin 22 mm slide carburettors, manual choke |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Oil-damped telescopic fork |
| Rear Suspension | Swing arm, dual shocks |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 133 kg / 293 lbs |
| WHEEL SPECS | |
| Front Tyre | 2.50-18 |
| Rear Tyre | 2.75-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
This later CB125K kept the 124 cc overhead-cam twin, now with twin 22 mm Keihin carburettors feeding a 15 hp, 10,500 rpm engine, oil-damped forks and drum brakes at both ends. It was a light, revvy learner machine sold alongside Honda's new single-cylinder CB125S, which eventually replaced it.
