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Motocross Bikes

2027GAS GAS MC 450F

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The 2027 GAS GAS MC 450F is a closed-course competition off-road bike displacing 449.9cc, built at 103.6kg dry with 300mm front and 300mm rear suspension travel. A 449.9cc four-stroke motocross flagship with WP XACT split-air front fork. GAS GAS does not publish official power/torque figures for this closed-course model.

Capacity
449.9 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
103.6 kg
Seat height
956 mm
Power
Not on record
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What’s new for the 2027 GAS GAS MC 450F

vs the 2026
Spec20262027
Power 56.0 HP (41.2 kW) not listed
Torque 23.0 Nm (2.3 kgf-m or 17.0 ft.lbs) not listed
Front suspension WP XACT-USD (AER), 48 mm not listed
Rear suspension WP XACT Monoshock with linkage not listed
Front brakes Single disc 260mm disc
Rear brakes Single disc 220mm disc
Wheelbase 1493 mm (58.8 inches) not listed
Compression 13.1:1 not listed
Other years 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 55Agility 90Comfort 25Off-road 95Touring 10Road manners 10
Off-road & trail95%
Cornering55%
City riding5%
Daily riding10%
Touring10%
Two-up5%
Track40%
Best for
Closed-course off-road competition riding
Built for
Lightweight 449.9cc competition off-road racer
Not ideal for
Beginner riders or road use

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

Will it fit you?

Worked out in your browser - nothing is sent to us
At 956mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2027 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
Engine type
Single, four-stroke
Cooling system
Liquid
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Dimensions & weight
Seat height
956 mm
Dry weight
103.6 kg
Fuel capacity
7.90 litres
Ground clearance
343 mm
Chassis & suspension
Front wheel travel
300 mm
Rear wheel travel
300 mm
Brakes & wheels
Front brakes
260mm disc
Front brakes diameter
260 mm
Rear brakes
220mm disc
Rear brakes diameter
220 mm
Other
Comments
A 449.9cc four-stroke motocross flagship with WP XACT split-air front fork. Closed-course competition model - GAS GAS does not publish official hp/torque.

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 20212023202420262027
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

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

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Common questions

What is the engine size of the GAS GAS MC 450F?

The 2027 GAS GAS MC 450F has a Capacity of 449.9 ccm (27.45 cubic inches).

How many gears does the GAS GAS MC 450F have?

The 2027 GAS GAS MC 450F has a Gearbox of 5-speed.

How much does the GAS GAS MC 450F weigh?

The 2027 GAS GAS MC 450F has a Dry weight of 103.6 kg (228.4 pounds).

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