Supermotos
2021Rieju MRT 125 SM AC
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The 2021 Rieju MRT 125 SM AC is a lightweight super motard designed for riders seeking agile urban performance and weekend fun. Its 125cc four-stroke single-cylinder engine delivers accessible power with a racing muffler character, while the steel perimeter frame and quality suspension components provide responsive handling for both commuting and spirited riding.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 95.0 kg
- Seat height
- 870 mm
- Power
- 15.0 HP (11.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a nimble, air-cooled supermoto for playful street riding, tight urban roads, and casual backroad carving rather than outright speed.
- Built for
- A flickable, minimalist supermoto with sporty road-biased tires and a punchy little single that rewards momentum-carrying, corner-hunting riding over straight-line speed.
- Not ideal for
- Not a good fit for riders wanting sustained highway touring, serious off-road capability, or strong two-up passenger comfort.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 125.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Torque
- 10.5 Nm (1.1 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1579 HP/kg (dry)
- Bore x stroke
- 56.5 x 49.5 mm
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Valves per cylinder
- 2
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
Dimensions & weight
- Wheelbase
- 1380 mm
- Overall length
- 2070 mm
- Overall width
- 800 mm
- Overall height
- 1145 mm
- Seat height
- 870 mm
- Dry weight
- 95.0 kg
- Fuel capacity
- 6.30 litres
Chassis & suspension
- Frame
- Highly resistant double cradle steel perimeter. Detachable rear sub-chassis.
- Front suspension
- Fork of Ø36mm.
- Rear suspension
- Mono-shock
Brakes & wheels
- Front brakes
- Single disc. Double piston caliper.
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black, White
- Comments
- Spanish brand.
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Rieju MRT 125 SM AC?
The 2021 Rieju MRT 125 SM AC has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Rieju MRT 125 SM AC have?
The 2021 Rieju MRT 125 SM AC has a Power of 15.0 HP (11.0 kW).
How many gears does the Rieju MRT 125 SM AC have?
The 2021 Rieju MRT 125 SM AC has a Gearbox of 6-speed.
What is the torque of the Rieju MRT 125 SM AC?
The 2021 Rieju MRT 125 SM AC has a Torque of 10.5 Nm (1.1 kgf-m or 7.7 ft.lbs) @ 8000 RPM.
How much does the Rieju MRT 125 SM AC weigh?
The 2021 Rieju MRT 125 SM AC has a Dry weight of 95.0 kg (209.4 pounds).
Shop this bike
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The 2021 Rieju MRT 125 SM AC is a powerful and stylish motorcycle that is perfect for both urban commuting and off-road adventures. Its 125cc engine delivers impressive performance, making it a top choice for riders looking for a smooth and exhilarating ride. The bike's sleek design and comfortable handling make it a standout option in its class, cementing Rieju's reputation for crafting high-quality and reliable motorcycles.
Rieju has equipped the MRT 125 SM AC with top-notch features such as a lightweight frame, advanced suspension system, and responsive braking, ensuring a safe and enjoyable riding experience. Additionally, the bike boasts a modern and eye-catching aesthetic, making it a head-turner on the streets. With its combination of power, style, and functionality, the 2021 Rieju MRT 125 SM AC is a fantastic choice for motorcycle enthusiasts looking for a versatile and high-performing bike.
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