25 July. Saturday 2026
Rieju Marathon 125 Pro - 2025 Specifications and Reviews
The 2025 Rieju Marathon 125 Pro is a lightweight enduro bike designed for beginner to intermediate off-road riders seeking affordable adventure. Its liquid-cooled Minarelli engine delivers 15 horsepower through a six-speed gearbox, while the robust steel cradle frame with detachable sub-chassis ensures durability on challenging terrain. Known for reliability and practicality, it excels as an entry-level trail and competition machine.
General information | |
| Color Options | Black/white/red, black/red |
| Category | Enduro / offroad |
| Year | 2025 |
| Model | Rieju Marathon 125 Pro |
Engine and Transmission Specifications | |
| Starting | Electric |
| Final Drive | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling System | Liquid |
| Induction | Injection |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 52.0 x 58.7 mm (2.0 x 2.3 inches) |
| Max Power | 15.0 HP (10.9 kW)) |
| Engine Details | Minarelli engine |
| Engine Type | Single cylinder, four-stroke |
| Capacity: | 125.0 ccm (7.63 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 6.00 litres (1.59 US gallons) |
| Wheelbase | 1405 mm (55.3 inches) |
| Overall Width | 800 mm (31.5 inches) |
| Overall Length | 2148 mm (84.6 inches) |
| Overall Height | 1165 mm (45.9 inches) |
| Seat Height | 896 mm (35.3 inches) If adjustable, lowest setting. |
| Power/Weight Ratio | 0.1339 HP/kg |
| Dry Weight | 112.0 kg (246.9 pounds) |
| | |
Rieju Marathon 125 Pro dimensions and frame | |
| Wheels | Alloy Rims |
| Rear Brakes | Single disc. Galfer Wave |
| Brake Disc Diameter | 200 mm (7.9 inches) |
| Front Brakes | Single disc. Galfer wave disc with double piston caliper |
| Rear Tyre | 120/90-18 |
| Front Tyre | 90/90-21 |
| Rear Suspension | Gas Mono-shock shock absorber and seaprate bottle PRS system |
| Front Suspension | R16V inverted fork of Ø40mm. |
| Frame | Highly resistant double cradle steel perimeter. Detachable rear sub-chassis. |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | Report missing specs or required updates. |
| Comments | Spanish brand. |
| Electrical | 12 Volt |
| Instruments | Digital |
| Exhaust system | Inox |
Performance Profile & Rider Fit
15 hp
Peak Power
Best For
Track15%
City45%
Cornering55%
Daily Riding40%
Touring20%
Passenger15%
Rider Profile
| Best For | This bike suits newer or smaller riders and those wanting a light, unintimidating machine to build off-road skills, though its tall seat height demands reasonable inseam confidence. |
| Purpose | It is built primarily for trail riding, technical enduro tracks, and low-speed off-road exploration rather than any kind of speed or highway work. |
| Rider Fit | The very low dry weight and slim chassis make it easy to muscle around, lift, and paddle through tricky terrain, but the tall seat height can challenge shorter riders. |
| Character | It has the character of a nimble, willing little enduro trail bike, eager to be flicked around obstacles but with only modest engine punch. |
| Not Ideal For | It is not suited to riders wanting sustained highway speeds, long-distance touring comfort, or carrying a passenger any real distance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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