Motocross Bikes

2024GAS GAS MC 450F

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The 2024 GAS GAS MC 450F is a competitive motocross bike designed for intermediate to advanced off-road riders seeking sharp handling and reliable performance. Powered by a liquid-cooled 450cc single-cylinder four-stroke engine with DOHC technology, it delivers punchy power delivery ideal for cross-country and circuit racing. Known for its precise Brembo braking system and nimble chassis, the MC 450F excels in technical terrain and demanding conditions.

Capacity: 449.9 ccm
Engine: Single, two-stroke
Gearbox: 5-speed
Dry weight: 103.0 kg
Seat height: 950 mm
Power: 56.0 HP (41.2 kW)

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What’s new for the 2024 GAS GAS MC 450F

vs the 2023

Spec	2023	2024
Torque	46.0 Nm (4.7 kgf-m or 33.9 ft.lbs) @ 7500 RPM	46.1 Nm (4.7 kgf-m or 34.0 ft.lbs) @ 7600 RPM
Dry weight	100.0 kg (220.5 pounds)	103.0 kg (227.1 pounds)
Fuel capacity	7.00 litres (1.85 US gallons)	7.90 litres (2.09 US gallons)

Other years 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail98%

Cornering90%

City riding8%

Daily riding10%

Touring8%

Two-up5%

Track85%

Best for: Built purely for closed-course motocross racing and serious off-road competition, not for commuting or general road use.
Built for: A light, high-revving, race-bred single-cylinder four-stroke with premium WP suspension and a steel double-cradle frame, delivering sharp, aggressive, track-focused handling.
Not ideal for: Not suitable for riders wanting comfort, highway touring capability, passenger carrying, or an easy first bike.

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 950mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2024 GAS GAS MC 450F, 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: 449.9 ccm
Power: 56.0 HP (41.2 kW)
Torque: 46.1 Nm (4.7 kgf-m) @ 7600 RPM
Engine type: Single, two-stroke
Power/weight ratio: 0.5437 HP/kg (dry)
Bore x stroke: 95.0 x 63.4 mm
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Keihin EMS

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, DDS multi-disc clutch, Brembo hydraulics

Dimensions & weight

Wheelbase: 1493 mm
Overall length: 2200 mm
Overall width: 830 mm
Overall height: 1260 mm
Seat height: 950 mm
Dry weight: 103.0 kg
Fuel capacity: 7.90 litres
Ground clearance: 370 mm

Chassis & suspension

Frame: Central double-cradle-type 25CrMo4 steel
Front suspension: WP XACT-USD, Ø 48 m
Rear suspension: WP XACT Monoshock with linkage
Front wheel travel: 310 mm
Rear wheel travel: 300 mm
Rake (fork angle): 26.1°

Brakes & wheels

Front brakes: Single disc. Two-piston calipers.
Front brakes diameter: 260 mm
Rear brakes: Single disc. Single-piston caliper.
Front tyre: 90/90-21
Rear tyre: 140/80-18

Other

Color options: Red/white
Comments: Torque is a rear-wheel dyno figure.

Specs last verified against published sources: October 2026.

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	2023	2024	2026	2027
Capacity	450 cc	450 cc	450 cc	450 cc	450 cc
Dry weight	100 kg	100 kg	103 kg	103 kg	104 kg
Seat height	950 mm	950 mm	950 mm	956 mm	956 mm
Fuel capacity	7 L	7 L	7.9 L	7.9 L	7.9 L