| MODEL | HONDA CM 125C 1983 |
| Year | 1983 |
| Engine Type | Four stroke, parallel twin, OHC, 2 valves per cylinder |
| Displacement / Capacity | 125 cc / 7.6 cu in |
| Bore X Stroke | 44 x 41 mm / 1.7 x 1.6 in |
| Compression Ratio | 9.4:1 |
| Cooling System | Air cooled |
| Max Power | 7.3 kW / 10 hp @ 9000 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Single carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Open diamond, tubular steel, engine as stressed member |
| Front Suspension | Telescopic fork |
| Rear Suspension | Swing arm, oil damped twin shocks |
| Front Brakes | Drum, cable operated |
| Rear Brakes | Drum, rod operated |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1280 mm / 50.4 in |
| Ground Clearance | — |
| Dry Weight | 139 kg / 306 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-18 |
| Rear Tyre | 110/90-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | — |
| Top Speed | 91 km/h / 56.5 mph |
For 1983 the CM125C Custom carried on unchanged in mechanical terms: the 125 cc twin, five speeds, chain drive and drum brakes all stayed. It remained a popular UK learner cruiser, set apart from the CB125 and CD125 by its chrome, polished alloy and laid-back riding position.
