Sherco 300 SEF Racing - 2021 Specifications and Reviews

The 2021 Sherco 300 SEF Racing is a competitive enduro machine built for serious off-road riders seeking lightweight agility and precision handling. Powered by a 303.7cc four-stroke single with fuel injection and liquid cooling, it delivers responsive power across varied terrain. Known for its robust engineering and race-proven reliability, it excels in technical cross-country and enduro competition.

2021
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General information

CategoryEnduro / offroad
Year2021
ModelSherco 300 SEF Racing
 
 

Engine and Transmission Specifications

Exhaust systemInox pipe with catalytic aluminium silencer
DrivelineGears in primary drive secondary drive with chain
ClutchHydraulic, multidisc in oil bath
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemDry sump
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Synerject digital electronic fuel injection
Valves per Cylinder4
Bore x Stroke84.0 x 54.8 mm (3.3 x 2.2 inches)
Engine detailsSherco engine
Engine typeSingle cylinder, four-stroke
Capacity:303.7 ccm (18.53 cubic inches)

Brakes, suspension, Frame and wheels

WheelsAluminum rim with Michelin Enduro Competition tube-type tire
Rear brakesSingle disc. Brembo
Diameter260 mm (10.2 inches)
Front brakesSingle disc. Brembo
Rear tire2.15-18
Front tire1.60-21
Rear wheel travel330 mm (13.0 inches)
Rear SuspensionWP Monoshock progressive rear suspension with aluminum control rods, adjustable for high and low speed compression and spring pre-load.
Front wheel travel300 mm (11.8 inches)
Front SuspensionWP 48mm telescopic fork, rebound and compression adjustable
Frame typeChrome-Molybdenum steel semi-perimeter

Physical measures and capacities

Fuel capacity9.70 litres (2.56 US gallons)
Wheelbase1480 mm (58.3 inches)
Ground clearance355 mm (14.0 inches)
Seat height950 mm (37.4 inches) If adjustable, lowest setting.
Dry weight102.0 kg (224.9 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSpanish brand.
Electrical12 V / 4Ah Yuasa battery.
StarterElectric
Color optionsBlue/white/green

Performance Profile & Rider Fit

Best For

Track30%
City15%
Cornering70%
Daily Riding15%
Touring20%
Passenger5%

Rider Profile

Best ForThis is a competition-focused enduro machine best suited to experienced off-road riders comfortable with a tall, aggressive, no-compromise race bike.
PurposeBuilt purely for serious enduro and off-road racing, with long-travel suspension and a light dry weight prioritizing agility over comfort or road use.
Rider FitThe tall 950mm seat height, minimal seat padding, and 102kg dry weight demand good rider fitness, leg length, and off-road riding technique.
CharacterA sharp, purpose-built racer character with responsive handling, high ground clearance, and premium WP suspension and Brembo brakes for technical terrain.
Not Ideal ForNot suited for commuting, highway touring, passengers, or riders seeking a plush, low-maintenance everyday motorcycle.

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

Rider Fit Visualizer

2021 Sherco 300 SEF Racing Rider Ergonomics Assessment

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

Feet:

At 950mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 Sherco 300 SEF 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 Sherco 300 SEF Racing motorcycle is a top-of-the-line off-road machine designed for serious riders. With its powerful 300cc engine and advanced suspension system, it offers exceptional performance and agility on any terrain. The bike's lightweight design and responsive handling make it a joy to ride, while its durable construction ensures it can handle the demands of tough off-road conditions. Whether you're navigating tight trails or tackling challenging obstacles, the Sherco 300 SEF Racing motorcycle is up to the task. In addition to its impressive performance capabilities, the 2021 Sherco 300 SEF Racing motorcycle also boasts a sleek and modern design that is sure to turn heads. The bike's attention to detail and high-quality components make it a standout choice for riders who demand the best. With its combination of power, agility, and stylish looks, the Sherco 300 SEF Racing motorcycle is a top contender in the off-road motorcycle market.
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