Motocross Bikes
2021GAS GAS MC 450F
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The 2021 GAS GAS MC 450F is a competitive motocross machine built for intermediate to advanced riders seeking aggressive trail and circuit performance. Its potent 450cc four-stroke engine delivers strong power delivery through a responsive DOHC system, while the lightweight steel frame and modern hydraulic componentry provide precise handling characteristics. Known for its versatile cross-country capability and aggressive styling, it excels in both competitive racing environments and demanding off-road terrain.
- Capacity
- 449.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 5-speed
- Dry weight
- 100.0 kg
- Seat height
- 950 mm
- Power
- 56.0 HP (41.2 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- 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?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 449.9 ccm
- Power
- 56.0 HP (41.2 kW)
- Torque
- 49.5 Nm (5.0 kgf-m)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.5600 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
- DDS wet multi-disc clutch, Braktec hydraulics
Dimensions & weight
- Wheelbase
- 1490 mm
- Overall length
- 2200 mm
- Overall width
- 830 mm
- Overall height
- 1260 mm
- Seat height
- 950 mm
- Dry weight
- 100.0 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 370 mm
Chassis & suspension
- Frame
- Central double-cradle-type 25CrMo4 steel
- Front suspension
- WP XPLOR-USD, Ø 48 mm
- 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
- Spanish brand.
Specs last verified against published sources: .
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 |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the GAS GAS MC 450F?
The 2021 GAS GAS MC 450F has a Capacity of 449.9 ccm (27.45 cubic inches).
What engine power does the GAS GAS MC 450F have?
The 2021 GAS GAS MC 450F has a Power of 56.0 HP (41.2 kW).
How many gears does the GAS GAS MC 450F have?
The 2021 GAS GAS MC 450F has a Gearbox of 5-speed.
What is the torque of the GAS GAS MC 450F?
The 2021 GAS GAS MC 450F has a Torque of 49.5 Nm (5.0 kgf-m or 36.5 ft.lbs).
How much does the GAS GAS MC 450F weigh?
The 2021 GAS GAS MC 450F has a Dry weight of 100.0 kg (220.5 pounds).
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Same category, weighted similarity
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450 cc · 101 kg · 950 mm
2022 KTM 450 SX-F Factory Edition
449 cc · 100 kg · 960 mm
2021 Honda CRF450R
450 cc · 107 kg · 965 mm
2021 Kawasaki KX450
449 cc · 106 kg · 955 mm
The 2021 GAS GAS MC 450F is a powerful and reliable motorcycle that offers impressive performance both on and off the track. The bike's 450cc engine provides plenty of power, with smooth and consistent delivery that makes it a joy to ride. The suspension is also top-notch, offering a comfortable and controlled ride over a variety of terrain. Whether you're hitting the trails or tearing up the motocross circuit, the GAS GAS MC 450F is a great choice for riders looking for a high-performance machine.
In addition to its impressive performance, the 2021 GAS GAS MC 450F also boasts a stylish and eye-catching design. The sharp graphics and sleek lines give the bike a modern and aggressive look that is sure to turn heads wherever you go. With its combination of power, handling, and style, the GAS GAS MC 450F is a top contender in the competitive world of motocross and off-road riding.
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