Enduro - Offroad · 2021

450 SEF Racing

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MotoLibrary Score

48 /100 Balanced

Engine

449 ccm

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Performance & Handling Profile Versatile Everyday Motorcycle

450 SEF Racing Performance & Handling Ratings

Power

45/100

449 cc

Torque

51/100

~41 Nm

Agility

94/100

109 kg dry

Ergonomics

35/100

950 mm

Range

57/100

~266 km (9.7L)

Tires, Oil & Maintenance Specs 2021 Factory Reference

450 SEF Racing Tire Size, Oil & Service Capacities

🛞 Front Tire Size

1.60-21

Pressure: 1.5 bar (22 psi)

🛞 Rear Tire Size

2.15-18

Pressure: 1.5 bar (22 psi)

🛢️ Engine Oil & Capacity

SAE 10W-40 Synthetic 4T (API SL/SN / JASO MA2)

Capacity: 1.70 litres (1.80 US quarts)

⛓️ Final Drive & Chain

Chain 520

6-speed

⚡ Spark Plugs & Battery

NGK CR8E / CR9E /CR9EH-9

Battery: 12V 10Ah / 12Ah (YTX9-BS / YTX12-BS / YT12A-BS)

⛽ Fuel Tank & Range

9.70 litres (2.56 US gallons)

Est. Range: ~266 km (165 mi)

🔧 Printable Workshop Fluid & PSI Card →

Engine

Displacement 449.4 ccm (27.42 cubic inches)

Engine Type Single cylinder, four-stroke

Engine Details Sherco engine

Bore x Stroke 95.0 x 63.4 mm (3.7 x 2.5 inches)

Valves/Cylinder 4

Fuel System Injection. Synerject digital electronic injection

Fuel Control Double Overhead Cams/Twin Cam (DOHC)

Ignition Digital transistorized (TCI / ECU)

Lubrication Dry sump

Cooling Liquid

Transmission

Gearbox 6-speed

Final Drive Chain (final drive)

Clutch Hydraulic, multidisc in oil bath

Driveline Gears in primary drive secondary drive with chain

Chain Size 520

Performance

Exhaust Inox pipe with catalytic aluminium silencer

Chassis

Frame Type Chrome-Molybdenum steel semi-perimeter

Front Suspension WP 48mm telescopic fork, rebound and compression adjustable

Front Travel 300 mm (11.8 inches)

Rear Suspension WP Monoshock progressive rear suspension with aluminum control rods, adjustable for high and low speed compression and spring pre-load.

Rear Travel 330 mm (13.0 inches)

Wheelbase 1480 mm (58.3 inches)

Ground Clearance 355 mm (14.0 inches)

Wheels & Brakes

Front Tyre 1.60-21

Rear Tyre 2.15-18

Front Tire Pressure 1.5 bar (22 psi)

Rear Tire Pressure 1.5 bar (22 psi)

Front Brakes Single disc. Brembo

Front Brake Ø 260 mm (10.2 inches)

Rear Brakes Single disc. Brembo

Rear Brake Ø 220 mm (8.7 inches)

Wheels Aluminum rim with Michelin Enduro Competition tube-type tire

Dimensions & Weight

Dry Weight 109.0 kg (240.3 pounds)

Seat Height 950 mm (37.4 inches) If adjustable, lowest setting.

Fuel Capacity 9.70 litres (2.56 US gallons)

Oil Capacity 1.70 litres (1.80 US quarts)

Service & Fluids

Engine Oil SAE 10W-40 Synthetic 4T (API SL/SN / JASO MA2)

Brake Fluid DOT 4

Coolant Liquid cooled, ethylene glycol antifreeze 50/50 mix

Spark Plugs NGK CR8E / CR9E /CR9EH-9

Battery 12V 10Ah / 12Ah (YTX9-BS / YTX12-BS / YT12A-BS)

Other

Starter Electric

Color Options Blue/white/green

Electrical 12 V / 4Ah Yuasa battery.

Notes

Spanish brand.

Owner Reviews, Editor Verdict & Safety Recalls Verified 2021 owner feedback, NHTSA/DVSA recall records & editorial review

2021 Sherco 450 SEF Racing Pros, Cons, Recalls & Verdict

✓ 5 Positive Owner Reviews (Pros)

Potent 449cc DOHC four-stroke engine produces broad, linear power and massive midrange torque
Plush WP XPLOR suspension setup tuned for forgiving compliance over rocks, roots, and trail chatter
Handlebar-mounted dual-map ignition switch lets riders instantly tame throttle response in slippery mud
Brembo hydraulic clutch and high-grade braking package offer light, precise fingertip control
Slim, ergonomically refined chassis allows effortless body movement and standing trail balance

! 5 Negative Owner Reviews & Known Issues (Cons)

Substantial rotating mass and inertia can cause rider fatigue in tight, technical single-track woods
Lacks the closed-cartridge KYB forks and Akrapovic exhaust system featured on the Factory edition
High seat height of nearly 950mm can complicate restarts on steep, off-camber hill climbs
Demands strict oil and valve maintenance intervals to maintain competition-level engine longevity
Noticeably heavier to pick up from the ground compared to 250cc and 300cc two-stroke alternatives

★ Editor's Technical Verdict (2021)

The 2021 Sherco 450 SEF Racing is a potent, big-bore four-stroke enduro built for high-speed cross-country trails, open fire roads, and flowing singletrack. Its broad powerband and supple WP suspension allow riders to conquer vast distances with confidence and stability. While demanding physical strength in tight woods, it offers a formidable, torque-rich package for serious off-road adventurers.

🛡️ Official Safety Recalls (2021) 0 Official Recalls

No official safety recalls reported for this model year.

🛡️ Open Full Recall & Chronic Fault Lookup → 📋 Generate Printable Pre-Purchase Checklist for 2021 450 SEF Racing →

Technical Overview

2021 Sherco 450 SEF Racing Technical Analysis, Chassis Review & Ownership Overview

Positioned in Sherco's enduro - offroad motorcycle lineup, the 2021 Sherco 450 SEF Racing pairs a 449.4 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal cylinder geometry specifies a bore and stroke of 95.0 x 63.4 mm (3.7 x 2.5 inches), 4 valves per cylinder, fuel delivery managed via injection, synerject digital electronic injection.

On the scales, the 450 SEF Racing measures 109 kg (240 lbs) dry. Rider ergonomics and dimensional geometry center around a 950 mm (37.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, a 1,480 mm (58.3 in) wheelbase engineered for balanced cornering agility and high-speed highway composure, and 355 mm (14 in) of minimum ground clearance. The 9.7-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Structurally, the 2021 Sherco 450 SEF Racing is built around a Chrome-Molybdenum steel semi-perimeter chassis with front suspension handled by WP 48mm telescopic fork, rebound and compression adjustable (300 mm / 11.8 in travel) and rear damping managed via WP Monoshock progressive rear suspension with aluminum control rods, adjustable for high and low speed compression and spring pre-load (330 mm / 13 in travel). Braking performance is delivered by single disc, Brembo (260 mm rotor diameter) up front paired with single disc, Brembo (220 mm) at the rear. Factory rolling stock mounts a 1.60-21 front tire and a 2.15-18 rear tire, sizing the contact patch for predictable turn-in grip and replacement tire availability.

Routine workshop maintenance calls for recommended SAE 10W-40 Synthetic 4T (API SL/SN / JASO MA2) engine oil (1.70 litres (1.80 US quarts)), NGK CR8E / CR9E /CR9EH-9 spark plugs, cold tire pressures of 1.5 bar (22 psi) front / 1.5 bar (22 psi) rear. Buyers cross-shopping the 2021 Sherco 450 SEF Racing in the Enduro - Offroad segment most frequently benchmark its horsepower, seat height, and curb weight against the Yamaha TT-R110E (2018), Yamaha TT-R125LE (2018), Ducati Multistrada 1200 Enduro (2018).

Standover Height

950 mm (37.4 in)

Tire Combination

1.60-21 / 2.15-18

About These 2021 Sherco 450 SEF Racing Specifications & Data Sources: Technical data for the 2021 Sherco 450 SEF Racing is compiled from manufacturer OEM service sheets and type-approval records by the MotoLibrary Editorial Team. Performance ratings, seat-height ergonomics, A1/A2 license eligibility, gearing speeds, and ownership cost estimates are calculated across MotoLibrary's database of 43,881+ motorcycles using power-to-weight (HP/kg) ratios and factory chassis dimensions.

✓ Verified against OEM service manuals & type-approval records

Editorial Methodology Report a Spec Correction →

Similar Enduro - Offroad Rivals — One-Click Compare Browse all Enduro - Offroad →

Multistrada 1200 Enduro

1198 cc · 152 HP

Ducati 2018

Multistrada 1200 Enduro Pro

Easier Ground Reach

📏 Lower-Seat Enduro - Offroad Alternatives

2018 Yamaha TT-R110E

Seat: 671 mm (26.4 inches) If adjustable, lowest setting.

VS →

2018 Yamaha TT-R125LE

Seat: 805 mm (31.7 inches) If adjustable, lowest setting.

VS →

2018 Ducati Multistrada 1200 Enduro

Seat: 870 mm (34.3 inches) If adjustable, lowest setting.

VS →

2018 Ducati Multistrada 1200 Enduro Pro

Seat: 870 mm (34.3 inches) If adjustable, lowest setting.

VS →

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Seat Height

Check the seat height against your inseam and riding posture before choosing a motorcycle.

Weight

Compare weight carefully because it affects low-speed handling, parking and confidence.

Fuel Capacity

Fuel capacity helps estimate touring range and how often you may need to stop.

Brakes

Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.

Suspension

Suspension details can matter for comfort, road feel and long-distance riding.

Transmission

Transmission and final drive affect maintenance, smoothness and everyday usability.

Rider Profile

Who Is This Bike For?

🌲

Best For

Off-Road & Adventure

📏

Seat Height

95 cm / 37.4 in

⚖️

Handling

Very lightweight — easy to handle

Find similar bikes for your profile →

Seat Height & Ergonomics Seat: 950 mm (37.4 in)

450 SEF Racing Seat Height & Rider Height Fit

Rider Height 175 cm (5'9")

Leg Inseam 79 cm (31.1")

Footwear Sole:

🟢 Balls of Both Feet (Secure)

Est. Knee Angle: ~92°

Quick Height Reference (950 mm Saddle + 18 mm Seat Width Arc):

163cm (5'4")

1-Foot Only

170cm (5'7")

1-Foot Only

178cm (5'10")

1-Foot Only

185cm (6'1")

1-Foot Only

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License & Power Limit Check Full A License (Unrestricted)

450 SEF Racing A1, A2 & LAMS License Compatibility

Exceeds A1/A2 learner limits (>70 kW or >0.20 kW/kg). Requires an unrestricted Category A motorcycle license.

Output (kW / HP)

N/A

Power / Weight

Standard

LAMS Ratio

N/A

🇪🇺 EU/UK A1 (≤11kW) ✗ No

🇪🇺 EU/UK A2 (≤35kW) ✗ Full A Only

🇦🇺 AU/NZ LAMS (≤150kW/t) ✓ Eligible

🌍 Unrestricted Class A ✓ All Riders

* EU Directive 2006/126/EC requires ≤35 kW (47.5 HP), ≤0.20 kW/kg wet weight, and a factory base model not exceeding 70 kW (95 HP) for A2 restriction. Always verify VIN homologation on your registration certificate.

🪪 Open Full A2 / LAMS Restrictor & Eligibility Checker →

Engine Design & Chassis Dimensions Bore/Stroke: 1.5:1

450 SEF Racing Engine Stroke, RPM & Steering Geometry

Mean Piston Speed (@ 8,500 RPM)

18 m/s (3,543 ft/min)

Moderate Sport-Street Stress (Balanced)

Bore × Stroke Architecture

95 × 63.4 mm

Extreme Oversquare (High-RPM Top-End Rush)

Steering Rake & Trail

Standard Rake

Neutral Balanced Cornering & Highway Composure

Wheelbase & Stability

1,480 mm (58.3 in)

Balanced street/canyon wheelbase

Engine Note: Mean piston speed (v_m = 2 × Stroke × RPM / 60) measures piston travel velocity at peak power. Values under 18.5 m/s indicate low inertial stress on connecting rods and rings; values above 21.5 m/s approach Formula 1 / MotoGP velocities.

Sprockets, Chain & Cruising RPM Base: 15T / 44T (2.93:1) · Class Ref

450 SEF Racing Sprocket Ratio, RPM & Top Speed

Front Sprocket 15T (0)

Rear Sprocket 44T (0)

Final Ratio

2.93:1

0.0% (Factory Stock)

100 / 120 km/h RPM

Top gear est.

Geared V-Max

~180 km/h

Rule of Thumb: Dropping 1 tooth in the front (-1T) equals roughly adding +2.7 to +3 teeth on the rear sprocket, boosting wheel torque by ~6–7% at the cost of higher highway cruising RPM.

⚙️ Tire Size & Speedo Error Calc → 🏁 Loaded Rider HP/kg & Drag Calc →

Tire Pressure & Suspension Travel Travel: 300mm F / 330mm R

450 SEF Racing Tire Pressure (PSI / Bar) & Suspension Sag

1. Riding Setup Mode:

2. Payload / Passenger Load:

Target Rider Sag (F / R)

90 mm Front · 99 mm Rear

Free (Static) Sag target: 10–15 mm

Cold Tire Pressure (F / R)

22 / 22 PSI

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2021 Sherco 450 SEF Racing Summary Table

Writing a review, forum post, or blog article on the 2021 Sherco 450 SEF Racing? Copy a Markdown table or embeddable HTML spec card:

### 2021 Sherco 450 SEF Racing — Key Specs & Telemetry
| Parameter | Specification |
| :--- | :--- |
| **Category** | Enduro - Offroad |
| **Displacement** | 449.4 ccm (27.42 cubic inches) |
| **Power Output** | N/A |
| **Torque** | N/A |
| **Seat Height** | 950 mm (37.4 inches) If adjustable, lowest setting. |
| **Weight (Dry / Wet)** | 109.0 kg (240.3 pounds) / 115.5 kg |
| **Mean Piston Speed** | 18 m/s @ 8500 RPM |
| **EU A2 License Status** | Full A License (Unrestricted) |
| **Source & Full Telemetry** | https://motolibrary.com/bikes/sherco/450-sef-racing/2021 |

<div style="font-family:system-ui,-apple-system,sans-serif;border:1px solid #e2dfd8;border-radius:12px;padding:14px 16px;max-width:560px;background:#ffffff;color:#1a1a1a"><div style="font-weight:700;font-size:16px;margin-bottom:8px">2021 Sherco 450 SEF Racing — Technical Specs &amp; Recall Summary</div><table style="width:100%;border-collapse:collapse;font-size:13px"><tr><td style="padding:5px 0;border-bottom:1px solid #eee;color:#666">Engine / Power</td><td style="padding:5px 0;border-bottom:1px solid #eee;font-weight:600;text-align:right">449.4 ccm (27.42 cubic inches) · N/A</td></tr><tr><td style="padding:5px 0;border-bottom:1px solid #eee;color:#666">Seat Height</td><td style="padding:5px 0;border-bottom:1px solid #eee;font-weight:600;text-align:right">950 mm (37.4 inches) If adjustable, lowest setting.</td></tr><tr><td style="padding:5px 0;border-bottom:1px solid #eee;color:#666">Weight (Dry / Wet)</td><td style="padding:5px 0;border-bottom:1px solid #eee;font-weight:600;text-align:right">109.0 kg (240.3 pounds) / 115.5 kg</td></tr><tr><td style="padding:5px 0;border-bottom:1px solid #eee;color:#666">License / Recall Audit</td><td style="padding:5px 0;border-bottom:1px solid #eee;font-weight:600;text-align:right">Full A License (Unrestricted) · 0 official safety recalls recorded</td></tr></table><div style="margin-top:8px;font-size:12px;color:#666">Data source: <a href="https://motolibrary.com/bikes/sherco/450-sef-racing/2021" style="color:#bf3b00;font-weight:600;text-decoration:none">2021 Sherco 450 SEF Racing Specs, Review &amp; Recalls — MotoLibrary</a></div></div>

Running & Fuel Cost Estimate

450 SEF Racing Annual Fuel, Maintenance & Ownership Cost

Annual km

Fuel Price ($/L)

Fuel Consumption (L/100km) — estimated

⛽ Fuel

per year

🔧 Maintenance

per year

🛡️ Insurance

per year

TOTAL

* Estimates only. Actual costs vary by country, riding habits, insurance provider and maintenance schedule.

Quick Buyer Answers

2021 Sherco 450 SEF Racing Frequently Asked Questions

Does the 2021 Sherco 450 SEF Racing have any official safety recalls?

No official safety recalls reported for this model year.

What is the seat height and weight of the 2021 Sherco 450 SEF Racing?

The 2021 Sherco 450 SEF Racing has a seat height of 950 mm (37.4 inches) If adjustable, lowest setting., a dry weight of 109.0 kg (240.3 pounds), and a wet/curb weight of 115.5 kg (estimated).

Is the 2021 Sherco 450 SEF Racing EU A2 or LAMS license legal?

License classification: Full A License (Unrestricted). Exceeds A1/A2 learner limits (>70 kW or >0.20 kW/kg). Requires an unrestricted Category A motorcycle license.

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