| MODEL | RIEJU RS3 NKD 125 2017 |
| Year | 2017 |
| Engine Type | Single cylinder, four-stroke, 4 valves |
| Displacement / Capacity | 125 cc / 7.63 cu in |
| Bore X Stroke | 52 x 58.6 mm / 2.0 x 2.3 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | CDI |
| Induction | Carburettor, Keihin CVEK 30 |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Triangular double cradle, double steel tube |
| Front Suspension | Inverted fork, 41 mm |
| Rear Suspension | Mono-shock, adjustable |
| Front Brakes | Single disc, double-piston caliper, 280 mm / 11.0 in |
| Rear Brakes | Single disc, 220 mm / 8.7 in |
| DIMENSION SPECS | |
| Overall Length | 2020 mm / 79.5 in |
| Overall Width | 770 mm / 30.3 in |
| Overall Height | 1090 mm / 42.9 in |
| Seat Height | 845 mm / 33.3 in |
| Wheelbase | 1375 mm / 54.1 in |
| Ground Clearance | — |
| Dry Weight | 128 kg / 282.2 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/80-17 |
| Rear Tyre | 130/80-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.17 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The RS3 NKD is the unfaired, streetfighter-style version of the RS3, here with a liquid-cooled four-stroke 125 cc engine for the A1 licence class. It keeps the double-cradle frame, inverted fork and adjustable rear shock. Colours offered were green and orange.
