MotoTec Thunder 50cc 2-Stroke Kids Gas Dirt Bike
MotoTec Thunder 50cc 2-Stroke Kids Gas Dirt Bike
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The MotoTec Thunder 50cc is a no-nonsense starter dirt bike that delivers exactly what young riders need: reliable power, real suspension, and proper brakes — all in a package sized for kids ages 7-12.
Who is it for? First-time riders ages 7-12, up to 110 lbs. The Thunder is the sweet spot between the ultra-basic 49cc models and the more advanced Warrior.
- 50cc 2-stroke engine with easy pull start
- Automatic centrifugal clutch — no shifting
- Front and rear disc brakes
- Front forks + rear spring shock
- Adjustable throttle governor
- Kill switch for safety
- Real pneumatic knobby tires
Why parents pick the Thunder: It's the right balance of price, performance, and size. Not too fast for a beginner, not too slow to bore them after a week. The throttle governor lets you start conservative and open it up as skills improve.
Runs on premix gas. 1-2 hours per tank. Ships 90% assembled with basic tools included (just attach handlebars, front wheel, and number plate).
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The MotoTec Thunder 50cc 2-Stroke is our best-selling beginner dirt bike for kids ages 7 to 12. Looking to compare seat heights, 4-stroke engines, or larger frame sizes for 10, 12, and 14-year-olds? Browse our complete 50cc dirt bike and kids gas dirt bikes collection (49cc–250cc), check our best dirt bikes under $500 guide, or explore all powersports categories at Dirt Moto Bikes.
Off-Road Recreational Notice: This product is designed strictly for closed-course, off-road recreational use on private property. It is not street-legal and is not for public transportation, public roads, or highways.
Frequently Asked Questions about MotoTec Thunder 50cc 2-Stroke Kids Gas Dirt Bike
Who is this vehicle recommended for, and what is the top speed?
This model is engineered for 10-16 years and reaches a top speed of approximately 25 MPH, depending on rider weight and terrain. Built-in speed selector switches allow supervised control for newer riders.
How does shipping work, and does it arrive fully assembled?
Dirt Moto Bikes provides free insured U.S. freight shipping. Vehicles ship factory-direct in a protective steel/cardboard crate and arrive approximately 85% to 90% pre-assembled. Final assembly typically involves attaching the handlebars, front wheel, and performing a routine bolt check. Professional assembly service is also available at checkout.
What kind of maintenance is required for this model?
This gas-powered model requires standard 2-stroke or 4-stroke engine maintenance, including regular oil checks/changes, air filter cleaning, chain tension adjustments, and checking brake disc alignment before heavy trail use.
Is a factory warranty included with your vehicles?
Yes! As an authorized dealer, Dirt Moto Bikes includes full manufacturer warranty coverage supporting replacement parts and technical troubleshooting.
Why Buy From DirtMotoBikes?
Why Buy From DirtMotoBikes?
✓ Authorized MotoTec Dealer
✓ Free U.S. Shipping (Lower 48)
✓ Fast U.S. Fulfillment (CA & WI)
✓ 30–60 Day Parts Warranty
✓ Secure Checkout
✓ Replacement Parts Available
✓ Expert Support
Specifications
| Engine | 50cc 2-Stroke, Air Cooled (2.4 hp) |
|---|---|
| Transmission | Auto Centrifugal (Chain Drive) |
| Top Speed | 25 MPH (Adjustable Speed Limiter) |
| Fuel Capacity | 1.6 Liter (Unleaded / 32:1 mix) |
| Cruising Range | 10+ miles per tank |
| Max Rider Weight | 150 lbs |
| Seat Height | 22 inches |
| Brakes | Front Disc, Rear Disc |
| Suspension | Front Inverted Fork, Rear Mono Shock |
| Tires | 2.50-10 (15 inch diameter, 2.5 inch wide) |
| Dirt Bike Dimensions | 50 x 23 x 32 inches |
| Dirt Bike Weight | 54 lbs |
Shipping & Delivery
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
Warranty & Support
Warranty & Support
Includes a 30–60 day limited parts warranty covering manufacturer defects.
Replacement parts and support are available through DirtMotoBikes.
