| MODEL | KEEWAY RKS 125 E4 2021 |
| Year | 2021 |
| Engine Type | Single cylinder, four-stroke, 2 valves |
| Displacement / Capacity | 124.1 cc / 7.6 cu in |
| Bore X Stroke | 57 x 48.8 mm |
| Compression Ratio | 10.6:1 |
| Cooling System | Air |
| Max Power | 8.3 kW / 11.4 hp @ 9000 rpm |
| Max Torque | 9.2 Nm / 6.8 ft-lb @ 7500 rpm |
| Ignition | TLI |
| Induction | Carburettor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Pressure splash |
| Gear Box | 5-speed |
| Clutch | Wet, multiple-plate |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Arch bar truck |
| Front Suspension | Telescopic fork, 110 mm travel |
| Rear Suspension | Telescopic coil spring, oil damped, 60 mm travel |
| Front Brakes | Single disc, 260 mm |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | 2050 mm / 80.7 in |
| Overall Width | 760 mm / 29.9 in |
| Overall Height | 1065 mm / 41.9 in |
| Seat Height | 760 mm / 29.9 in |
| Wheelbase | 1290 mm / 50.8 in |
| Ground Clearance | 185 mm / 7.3 in |
| Dry Weight | 132 kg / 291 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-17 |
| Rear Tyre | 100/80-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The E4 version of the RKS 125 is the Euro 4 compliant update of Keeway's air-cooled 125 cc commuter, keeping the five-speed single-cylinder engine but with revised chassis details and a rear disc brake.
