MotoTec Demon 40cc 4-Stroke: The Cleaner, Quieter Starter Bike

Easy-to-Maintain 4-Stroke Power with Parental Speed Control

The MotoTec Demon 40cc is the premium choice for parents looking for a reliable, beginner-friendly dirt bike. Unlike 2-stroke models, the Demon’s 4-stroke air-cooled engine is quieter, more fuel-efficient, and—most importantly—requires no gas and oil mixing. Just pour in straight unleaded gasoline and go! With a 22 MPH top speed and a rugged "big bike" attitude, it’s the perfect machine for backyard trails and driveway fun.

The MotoTec Quality Difference

Not all mini bikes are built the same. The Demon is engineered with upgraded components for lower maintenance and higher performance, including higher-grade wheel bearings, longer-wearing high-grip tires, and a heavy-duty Chromoly steel frame.

Advanced Safety & Handling

• Parental Speed Limiter: Features a restrictable throttle that allows you to cap the top speed while your child learns the ropes.

• Pro-Style Suspension: Equipped with front inverted forks (70mm travel) and a rear mono shock (60mm travel) to soak up bumps for a smoother, more stable ride.

• Fully Automatic: No gears or clutches to master. The auto-centrifugal transmission makes it simple: just twist the throttle and enjoy the ride.

• Precision Braking: Front and rear mechanical disc brakes provide consistent stopping power in both wet and dry conditions.

100% Online Financing Available

Kickstart their off-road hobby today with 100% online financing and instant approval at checkout. Ride now and pay in low, flexible monthly installments!

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Full Technical Specifications

Category	Detailed Specifications
Motor	40cc 4-Stroke, Air Cooled (EPA Approved)
Output / Torque	1.9hp @ 6500 rpm / 1.6Nm @ 5000 rpm
Fuel	Unleaded Gasoline (No Oil Mixing Required)
Starting System	High-Grade Easy Start Pull Cord
Performance	Top Speed: 22 MPH (Adjustable Limiter)
Range	20+ Miles per Tank (1.2L Tank)
Safety Features	Adjustable Throttle Limiter
Transmission	Auto Centrifugal (Fully Automatic)
Suspension (Front)	Front Inverted Fork (70mm Travel)
Suspension (Rear)	Rear Mono Shock (60mm Travel)
Brakes	Front Disc & Rear Disc
Tires (Front/Rear)	2.50-10 (15" Diameter, 2.5" Wide)
Wheels	Aluminum Alloy Rims
Frame	Chromoly Steel
Seat Height	23 Inches
Ground Clearance	5.3 Inches
Max Rider Weight	165 lbs
Product Weight	51 lbs (Dry) / 63 lbs (Box Weight)
Certifications	CE and EPA Approved
Warranty	30 Days Parts Replacement

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Important Information for California Customers

Notice: This bike is for "Competition Use Only" in California. It cannot be registered with the CA DMV for green or red stickers and may only be ridden on closed courses for competition purposes. It does not meet California Emissions Standards.

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Frequently Asked Questions

Do I have to mix oil with the gas for this bike?

No! That is the biggest advantage of the MotoTec Demon 40cc. It uses a 4-stroke engine, which means it has a separate oil reservoir. You only put straight unleaded gasoline into the gas tank, making it much cleaner and easier to use than 2-stroke bikes.

How do I limit the speed for my child?

The bike is equipped with a throttle limiter screw on the handlebars. By tightening the screw, you can physically stop the throttle from rotating fully, allowing you to set a safe maximum speed for beginners.

What is a "Chromoly" frame?

Chromoly (Chrome-Molybdenum) is a high-grade steel alloy that is significantly stronger and lighter than standard carbon steel. It provides the durability needed for off-road riding while keeping the bike light enough for a child to handle.

Is the seat height adjustable?

The seat height is fixed at 23 inches, which is ideal for most kids transitioning to their first gas bike. However, the handlebars are angle-adjustable, allowing you to move them forward or back to accommodate your child's reach.