Enduro Bikes

2021Rieju MR 300 Pro

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The 2021 Rieju MR 300 Pro is a lightweight two-stroke enduro bike designed for trail riders and competition enthusiasts seeking nimble off-road performance. Its 299cc single-cylinder engine with VForce 4 reed valve delivers responsive power and easy handling on technical terrain. Known for excellent maneuverability and reliable six-speed transmission, it excels as an accessible entry to serious enduro riding.

Capacity: 299.3 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 105.0 kg
Seat height: 960 mm
Power: 29.9 HP (22.0 kW)

⇄ Compare with another bike ＋ Add to garage All model years

Other years 2021 2022 2023 2024 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail97%

Cornering70%

City riding15%

Daily riding15%

Touring15%

Two-up5%

Track40%

Best for: Built for serious enduro trails, tight technical terrain, and off-road competition rather than any road use.
Built for: A raw, purpose-built two-stroke enduro weapon with premium suspension and race-ready components, rewarding an aggressive, skillful riding style.
Not ideal for: This is a poor choice for commuting, highway travel, passengers, or anyone wanting a plush, low-maintenance road-going motorcycle.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 960mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2021 Rieju MR 300 Pro, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 299.3 ccm
Power: 29.9 HP (22.0 kW)
CO2 Emissions: 5 CO2 g/km
Engine type: Single, two-stroke
Power/weight ratio: 0.2848 HP/kg (dry)
Bore x stroke: 72.0 x 72.0 mm
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric & kick
Ignition: CDI
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Clutch: Multidisc in oil bath. Magura clutch pump.

Dimensions & weight

Wheelbase: 1480 mm
Overall length: 2145 mm
Overall width: 810 mm
Overall height: 1235 mm
Seat height: 960 mm
Dry weight: 105.0 kg
Fuel capacity: 8.90 litres
Ground clearance: Not on record - add it

Chassis & suspension

Frame: Central spine in Chromium Molybdenum Steel
Front suspension: KYB 48 mm, AOS System, Closed Cartridge Anti-Friction Treatment DLC
Rear suspension: KYB mono-shock
Front wheel travel: 300 mm
Rear wheel travel: 131 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 260 mm
Rear brakes: Single disc
Front tyre: 90/90-21
Rear tyre: 140/80-18

Other

Color options: Red/white/black/beige
Comments: Spanish brand.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2021	2022	2023	2024	2027
Capacity	299 cc	299 cc	299 cc	299 cc	298 cc
Dry weight	105 kg	105 kg	105 kg	105 kg	104 kg
Seat height	960 mm	950 mm	950 mm	950 mm	949 mm
Fuel capacity	8.9 L	9.8 L	9.8 L	9.8 L	9.8 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2021 Rieju MR 300 Pro is a powerful and capable off-road motorcycle designed for adrenaline junkies and dirt bike enthusiasts. With a 299cc two-stroke engine, this bike delivers impressive torque and acceleration, making it ideal for conquering challenging terrain. Its lightweight and agile design allows for nimble handling, while the high-quality suspension system ensures a smooth and controlled ride over bumpy trails. Whether you're a seasoned rider or a newcomer to the off-road scene, the Rieju MR 300 Pro is sure to impress with its performance and reliability.

Overall, the 2021 Rieju MR 300 Pro is a top-tier off-road motorcycle that offers a thrilling and dynamic riding experience. From its powerful engine to its agile handling, this bike is built to tackle the toughest trails with ease. Whether you're hitting the dirt for weekend adventures or competing in off-road races, the Rieju MR 300 Pro is a go-to choice for riders looking for a high-performance and capable off-road machine.

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