| MODEL | RIEJU MARATHON 125 PRO COMPETIZIONE 2013 |
| Year | 2013 |
| Engine Type | Single-cylinder, four-stroke, 4 valves per cylinder, liquid cooled |
| Displacement / Capacity | 125 cc / 7.6 cu in |
| Bore X Stroke | 52 x 58.6 mm / 2 x 2.3 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | Race-spec CDI with selectable power mapping |
| Induction | Carburettor, Keihin CVEK 30 |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6-speed |
| Clutch | Wet multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Double cradle, high-resistance steel perimeter |
| Front Suspension | Marzocchi 40 mm inverted fork, adjustable |
| Rear Suspension | Gas mono-shock with separate bottle, PRS system, adjustable |
| Front Brakes | Single 300 mm / 11.8 in Galfer wave disc, double-piston caliper |
| Rear Brakes | Single 200 mm / 7.9 in Galfer wave disc |
| DIMENSION SPECS | |
| Overall Length | 2150 mm / 84.6 in |
| Overall Width | — |
| Overall Height | 1165 mm / 45.9 in |
| Seat Height | 870 mm / 34.3 in |
| Wheelbase | 1405 mm / 55.3 in |
| Ground Clearance | — |
| Dry Weight | 115 kg / 253.5 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 120/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 6.3 Litres / 1.66 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Competizione is a competition-oriented variant of the 125 Pro with a race CDI offering selectable power maps, a Leovince exhaust, tapered bars and FIM3 competition wheels, in green and yellow. It targets young riders who want to race a 125 cc enduro.
