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Thunder Kids Gas Dirt Bike, 50cc 2-Stroke, Ages 8 and up

$449.00

Thunder 50cc 2-Stroke Kids Gas Dirt Bike, the ultimate ride for young daredevils. With a blazing fast engine, easy pull start, and improved carburetor, this dirt bike is ready to take on any challenge.

Perfect for wet or dry weather, this dirt bike will provide endless entertainment in almost any outdoor setting for youngsters. Its sturdy build can withstand off-road adventures, featuring a Chromalloy frame that can support your child as they grow, and genuine rubber tires made for outdoor use. With responsive acceleration, front telescopic forks, rear mono shock suspension, disk brakes, motocross-inspired design, and a big bike mindset, this is the ideal choice for kids. It's easy to ride, fully automatic, so just twist the throttle and hit the road!

Different Mini Dirt Bikes, same old maintenance? Not this one! Quality is king, with top-grade parts like wheel bearings, tough tires, and smooth suspension. Start up the easy way with a premium pull cord, and stay safe and stylish with our top-notch design. Plus, it's CE and EPA approved.

Specifications

Motor: 50cc 2-Stroke, Air Cooled (Competition Use Only)

Gas/Oil Mixture: Unleaded/32:1 ratio

Bore x Stroke: 44.02mm x 33.2mm

Rated Output: 2.4 hp @ 7,000 rpm
Engine Start: Pull Start
Gas Tank: 1.6 Liter

Top Speed: 25 mph (adjustable speed limiter)

Cruising Range: 10+ miles per tank
Safety: Throttle Limiter
Transmission: Auto Centrifugal

Chain: 11T/54T - T8F Size
Carburetor Jet: 2.00mm (main) and 0.67mm

Recommended Age: 13+
Max Rider Weight: 150 lbs

Seat Height: 22 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 and Rear 190.5mm Mono Shock
Throttle: Variable twist-grip
Seat: Padded (single rider)
Handlebars: Angle Adjustable, Not Height
Seat Height from Ground: 23 inches

Wheelbase: 35 inches (890mm)

Ground Clearance: 9 inches
Assembly Required: Yes
Box Size: 44x13x23 inches
Box Weight: 64 lbs

Dirt Bike Dimensions: 50x23x32 inches

Dirt Bike Dry Weight: 54 lbs

FAQ Accordion with Animation

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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Thunder Kids Gas Dirt Bike, 50cc 2-Stroke, Ages 8 and up

Specifications

Frequently Asked Questions

Customer Reviews