How fast does a 40cc dirt bike go?

This 40cc 4-stroke dirt bike reaches approximately 20-25 mph. It includes a speed governor for parental control.

What age is this 40cc dirt bike for?

Recommended for riders ages 8-13. Includes training wheels and speed governor for beginners.

What type of transmission does this bike have?

This model features a automatic clutch (no shifting required).

Does this dirt bike have electric start?

The Hooligan 60cc has push-button electric start. Smaller models use pull-start.

What fuel does this 4-stroke dirt bike use?

Regular unleaded gasoline — no mixing required. 4-stroke engines are quieter, more reliable, and lower maintenance than 2-stroke engines.

Is this dirt bike good for beginners?

Yes — the 4-stroke engine delivers smooth, predictable power that is less intimidating for new riders.

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MotoTec Demon 40cc 4-Stroke Kids Gas Dirt Bike

$479.00

~~$574.97~~ $479.00

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Engine: 40cc 4-Stroke • Fuel Capacity: 1.2 Liter • Top Speed: 22 MPH (Adjustable) • Range: 20+ Miles • Max Rider: 165 lbs • Seat Height: 23 inches • Brakes: Front & Rear Disc

The MotoTec Demon 40cc is the gold standard for kids' gas dirt bikes. Powered by a latest-generation 40cc 4-stroke engine, it's quieter, more reliable, and easier to start than older 2-stroke models — while still delivering the authentic gas-powered riding experience that electric bikes can't replicate.

Who is it for? Kids ages 8-13, up to 120 lbs. Best for riders who want the sound, feel, and unlimited range of a gas engine without the complexity of a full-size dirt bike.

Why the 4-stroke matters:

Quieter than 2-stroke engines — won't anger the neighbors
No oil mixing — runs on straight gasoline
More reliable starting — easy pull-start
Smoother power delivery — less jerky for beginners
Lower maintenance — longer engine life

Features:

40cc 4-stroke OHV engine with easy pull start
Automatic centrifugal clutch — no shifting required
Front and rear disc brakes
Front telescopic forks + rear mono-shock
Adjustable throttle limiter for parents
Kill switch on handlebars for safety
Real knobby tires on steel rims

Runs for 1-2 hours on a tank of gas. No charging, no range anxiety. Ships 90% assembled with

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📖 Buying Guides:
Electric vs Gas Dirt Bikes for Kids
What Size Dirt Bike Does My Kid Need?
Best Dirt Bikes Under $500

🔗 Browse: All Gas Dirt Bikes

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Specifications

Engine	40cc 4-Stroke, Air Cooled (1.9 hp)
Transmission	Auto Centrifugal (Chain Drive)
Top Speed	22 MPH (Adjustable Speed Limiter)
Fuel Capacity	1.2 Liter
Cruising Range	20+ miles per tank
Max Rider Weight	165 lbs
Seat Height	23 inches
Brakes	Front Disc, Rear Disc
Suspension	Front Inverted Fork (70mm Travel), Rear Mono Shock (60mm Travel)
Tires	2.50-10 (15 inch diameter, 2.5 inch wide)
Dirt Bike Dimensions	51 x 30 x 23 inches
Dirt Bike Weight	51 lbs

Shipping & Delivery

• Ships from U.S. warehouses
• Most orders deliver in 3–7 business days
• Larger items may ship by freight with appointment scheduling
• Tracking provided for all orders