14 August. Friday 2026
Rieju Marathon 125 SM Pro - 2026 Specifications and Reviews
The 2026 Rieju Marathon 125 SM Pro is a lightweight supermoto designed for riders seeking nimble urban performance and off-road versatility. Powered by a 15 HP Minarelli 4-stroke engine with liquid cooling and fuel injection, it delivers responsive handling through its steel perimeter frame. Best suited for beginner to intermediate riders, this 125cc excels in mixed-terrain commuting and recreational riding.
General information | |
| Color Options | Black/white/red, black/red |
| Category | Super motard |
| | |
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) |
| Engine Details | Minarelli 4T 125cc Variable distribution´ |
| Capacity: | 125.0 ccm (7.63 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 6.00 litres (1.59 US gallons) |
| Wheelbase | 1380 mm (54.3 inches) |
| Overall Width | 800 mm (31.5 inches) |
| Overall Length | 2148 mm (84.6 inches) |
| Overall Height | 1145 mm (45.1 inches) |
| Seat Height | 876 mm (34.5 inches) If adjustable, lowest setting. |
| Power/Weight Ratio | 0.1339 HP/kg |
| Dry Weight | 112.0 kg (246.9 pounds) |
Rieju Marathon 125 SM 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 | 130/70-17 |
| Front Tyre | 100/80-17 |
| 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 |
| Power | 15.0 HP (10.9 kW)) |
| Engine type | Single cylinder, four-stroke |
| Year | 2025 |
| Motorcycle name | Rieju Marathon 125 SM Pro |
Performance Profile & Rider Fit
15 hp
Peak Power
14.5s
0-60 mph
Best For
Track55%
City80%
Cornering82%
Daily Riding55%
Touring20%
Passenger25%
Rider Profile
| Best For | Well suited to newer riders or those on a restricted license who want a light, playful supermoto to build skills on. |
| Purpose | Designed for flickable urban riding and sharpened cornering fun rather than outright speed or distance covering. |
| Rider Fit | Its tall seat height and slim, light chassis make it easy to manage for most body sizes despite the lofty stance. |
| Character | A nimble, high-revving small-bore supermoto that rewards an energetic, momentum-focused riding style. |
| Not Ideal For | Not a good match for riders wanting sustained highway speeds, long-distance touring comfort, or serious off-road capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
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