| MODEL | KTM RC 125 2020 - 2021 |
| Year | 2020 - 2021 |
| Engine Type | Four stroke, single cylinder, DOHC with finger followers, 4 valves |
| Displacement / Capacity | 124.7 cc / 7.6 cu in |
| Bore X Stroke | 58 x 47.2 mm |
| Compression Ratio | 14.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 15 hp / 10.9 kW @ 9500 rpm |
| Max Torque | 11.8 Nm / 8 lb-ft @ 8000 rpm |
| Ignition | Contactless, controlled, fully electronic with digital ignition timing adjustment |
| Induction | Bosch fuel injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Forced oil lubrication with 2 Eaton pumps |
| Gear Box | 6 speed |
| Clutch | Wet multi-disc, mechanically operated |
| Final Drive | Chain 5/8 x 1/4 X-Ring |
| CHASSIS SPECS | |
| Frame | Tubular space frame, steel, powder-coated |
| Front Suspension | WP upside-down fork (43 mm), 120 mm / 4.7 in travel |
| Rear Suspension | WP monoshock, 150 mm / 5.9 in travel |
| Front Brakes | Single 300 mm disc |
| Rear Brakes | Single 230 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 820 mm / 32.3 in |
| Wheelbase | 1210 mm / 47.6 in |
| Ground Clearance | 179 mm / 7.0 in |
| Dry Weight | 135 kg / 297.6 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/70-17 |
| Rear Tyre | 150/60-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2020-2021 RC 125 is an entry-level, street-legal supersport-styled bike built on the same liquid-cooled 125 cc single as earlier years. It keeps the Euro 4 compliant exhaust, electronic fuel injection and the steeper steering-head angle shared with the larger RC models. Standard equipment includes WP suspension, 17-inch cast alloy wheels and a 43 mm upside-down fork.
