PRIME DAY SALE

Demon Kids Gas Dirt Bike, 40cc 4-Stroke, Automatic 10/10 inch Wheels, Ages 8 and up

  • $449.00
  • $799.00
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The Demon 40cc 4-Stroke Kids Dirt Bike - The perfect kids starter dirt bike. The latest generation of 40cc mini bike engines are faster, torquier, more reliable and even easier to set up and start than ever before. Easy pull start, improved carburetor and all of the standard safety features, support and reliability.

Suitable for both wet and dry conditions. This bike will offer hours of fun in almost any children’s outdoor environment. Built Solid, this bike can handle any off-road riding. A Chromalloy frame, with the ability to bear your child’s weight as they grow, and real outdoor rubber tires separate this bikes from similar products. Responsive acceleration, front telescopic forks, rear mono shock suspension, disk brakes, motocross styling and big bike attitude, makes this the perfect children’s choice. Simple to ride, it's fully automatic, so just twist the throttle and go.

All Mini Dirt Bikes are not the same. You should be aware of the build quality and parts quality is very important to how much maintenance is required. This Dirt Bike has been specified for quality and reliability, improvements specified over standard Dirt Bikes include – Higher Grade Wheel Bearings - Longer Wearing Tires - Higher Grip Tires - High-Quality Suspension for smoother ride - High-Grade Easy Start Engine Pull Cord - Chromoly steel frame - Restrict able throttle for speed control - Safety and Design - CE and EPA approved.

Specifications

Motor: 40cc 4-Stroke, Air Cooled (Competition Use Only)
Rated Output: 1.9hp @ 6500 rpm
Torque: 1.6Nm @ 5000 rpm
Engine Start: Pull Start
Gas Tank: 1.2 Liter
Top Speed: 22 mph (adjustable speed limiter)
Cruising Range: 20+ miles per tank
Safety: Throttle Limiter
Transmission: Auto Centrifugal
Chain: T8F 68 Link
Carburetor: 2629
Recommended Age: 13+
Max Rider Weight: 165 lbs
Seat Height: 23 inches
Handlebar Height: 30 inches
Frame: Steel
Front & Rear Wheels: Aluminum Alloy
Front & Rear Tires: 2.50-10 (15 inch diameter, 2.5 inch wide)
Brakes: Front Disc, Rear Disc
Suspension: Front Inverted Fork Travel 70mm & Rear Mono Shock Travel 60mm
Throttle: Variable twist-grip
Seat: Padded (single rider)
Handlebars: Angle Adjustable, Not Height
Seat Height from Ground: 23 inches
Wheelbase: 35 inches (89cm)
Ground Clearance: 5.3 inches
Assembly Required: Yes
Box Size: 44x13x24 inches
Box Weight: 63 lbs
Dirt Bike Dimensions: 51x30x23 inches
Dirt Bike Dry Weight: 51 lbs
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Frequently Asked Questions

When will my order be shipped and how long does delivery take?
Orders containing in-stock items typically ship within 3–5 business days. Orders that include assembly will require 7–10 business days to prepare. Please note that during the holiday season (Thanksgiving through Christmas), processing times may be longer due to high order volume. Once your order has shipped, you’ll receive an email with tracking information. Most orders are shipped via Less Than Truckload (LTL) freight and generally arrive within 3–7 business days. Deliveries to remote areas (such as mountains, forests, valleys, or islands) may take longer. You can check the estimated delivery date on the carrier’s website using the tracking number we provide.
How your vehicle is shipped?
Unless otherwise noted, the vehicles we offer are shipped crated or on a pallet and do not come assembled unless you’ve selected our assembly service. Assembly typically requires a few basic tools and mechanical knowledge. If you're not confident in your ability to safely assemble a high-speed off-road vehicle, we strongly recommend selecting professional assembly or having it assembled by a local mechanic.

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Do you offer financing?
Yes. Buy-now-pay-later financing is available with our preferred partner, BreadPay® (please see their icon under product pricing for details).

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How can I get assistance if I have question on products?
Please call 888-886-5846 and talk to one of our knowledgeable sales representatives between 9am-3pm PST. Or send us email at orders@gokartsusa.biz.
What warranty is included with my purchase?
You're covered with confidence at GoKarts USA®. Your satisfaction is our top priority. Every purchase comes with manufacturer-backed warranty protection—including up to 12 months of engine coverage—to keep your ride running strong. TrailMaster products also include a 6-month parts warranty for added peace of mind.

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What does 95% or 98% Assembly Mean? What do I need to assemble if shipped in crate?

For shipping safety, most vehicles cannot be fully assembled prior to delivery.

Minor assembly is required—this typically includes installing mirrors, connecting the battery, adjusting handlebars, and other small components. Before operation, please ensure all screws and fasteners are tightened, engine fluids are at proper levels, and the battery is fully charged. Your factory warranty remains valid right out of the box.

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