| MODEL | RIEJU MARATHON 450 2011 |
| Year | 2011 |
| Engine Type | Single-cylinder, four-stroke, liquid cooled |
| Displacement / Capacity | 449 cc / 27.4 cu in |
| Bore X Stroke | 95 x 63.4 mm / 3.7 x 2.5 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | CDI |
| Induction | Carburettor, Keihin FCR-MX39 |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Highly resistant semi double-cradle steel |
| Front Suspension | Marzocchi inverted Shiver, 45 mm |
| Rear Suspension | Sachs with PRS system |
| Front Brakes | Double 260 mm / 10.2 in disc |
| Rear Brakes | Single 240 mm / 9.4 in disc |
| DIMENSION SPECS | |
| Overall Length | 2190 mm / 86.2 in |
| Overall Width | 810 mm / 31.9 in |
| Overall Height | 1230 mm / 48.4 in |
| Seat Height | 900 mm / 35.4 in |
| Wheelbase | 1485 mm / 58.5 in |
| Ground Clearance | — |
| Dry Weight | 115 kg / 253.5 lb |
| Wet Weight | 132 kg / 291 lb |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 140/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 Litres / 2.25 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Marathon 450 was Rieju's big four-stroke enduro, with a Yamaha-derived 449 cc engine, upside-down Marzocchi fork and PRS rear shock. It was aimed at experienced riders wanting a competition-style trail bike.
