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