Rieju MR 300 Racing - 2021 Specifications and Reviews

The 2021 Rieju MR 300 Racing is a lightweight two-stroke enduro machine designed for competitive off-road riders seeking agility and power. Its 299cc single-cylinder engine with VForce 4 reed valve delivers responsive performance, while the liquid-cooled technology ensures reliability in demanding conditions. Best suited for trail racing and technical terrain, it combines modern Euro 5 emissions compliance with classic two-stroke character.

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General information

CategoryEnduro / offroad
Year2021
ModelRieju MR 300 Racing
 
 

Engine and Transmission Specifications

Exhaust systemPowerCore 2.1- Rieju Powered
Emission detailsEuro 5
ClutchMultidisc in oil bath. Magura clutch pump.
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
IgnitionDigital CDi
Fuel systemCarburettor
Bore x Stroke72.0 x 72.0 mm (2.8 x 2.8 inches)
Engine detailsDirect reed valve VForce 4
Engine typeSingle cylinder, two-stroke
Capacity:299.3 ccm (18.26 cubic inches)

Brakes, suspension, Frame and wheels

WheelsExcel rim, aluminium radiated
Rear brakesSingle disc. Nissin brake caliper
Diameter260 mm (10.2 inches)
Front brakesSingle disc. Nissin brake caliper
Rear tire140/80-18
Front tire90/90-21
Rear wheel travel131 mm (5.2 inches)
Rear SuspensionKYB mono-shock
Front wheel travel300 mm (11.8 inches)
Front SuspensionKYB ø48 mm, AOS system, closed cartridge
Frame typeCenter frame in chrome-moly-steel

Physical measures and capacities

Fuel capacity8.90 litres (2.35 US gallons)
Wheelbase1480 mm (58.3 inches)
Overall width810 mm (31.9 inches)
Overall length2145 mm (84.4 inches)
Overall height1235 mm (48.6 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Dry weight105.0 kg (231.5 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSpanish brand.
StarterElectric & kick
Color optionsRed/white/black/beige

Performance Profile & Rider Fit

Best For

Track40%
City15%
Cornering85%
Daily Riding15%
Touring20%
Passenger5%

Rider Profile

Best ForNote: specifications given correspond to the Rieju MR Six Days France model rather than the named MR 300 Racing, though both are closely related enduro two-strokes; this profile is best suited to experienced off-road riders, as the light weight and punchy
PurposeBuilt purely for competitive and recreational enduro riding over rough, technical terrain rather than road use.
Rider FitThe very low dry weight and tall 960mm seat height demand good rider fitness and leg length but reward the rider with exceptional maneuverability in the dirt.
CharacterA raw, high-strung two-stroke enduro weapon that thrives on aggressive throttle input and rewards an active, standing riding style.
Not Ideal ForThis is not the bike for a beginner, a passenger, a highway commuter, or anyone wanting comfort and long-distance touring ease.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Rieju MR 300 Racing Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 Rieju MR 300 Racing, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Rieju MR 300 Racing motorcycle is an impressive off-road machine that offers excellent performance and handling. With its powerful 2-stroke engine and lightweight design, the MR 300 Racing is perfect for riders looking for an adrenaline-pumping experience. The bike's top-notch suspension and responsive brakes make it a joy to ride on any terrain, while its sleek and aggressive styling is sure to turn heads wherever you go. Whether you're a seasoned pro or an amateur rider, the Rieju MR 300 Racing is a top contender in the off-road motorcycle market. Overall, the 2021 Rieju MR 300 Racing motorcycle is a top-of-the-line off-road bike that delivers on both performance and style. With its powerful engine, responsive handling, and eye-catching design, the MR 300 Racing is a great choice for riders looking for a thrilling off-road experience. Whether you're hitting the trails or taking on the track, this motorcycle is sure to impress with its impressive capabilities and rugged good looks.
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