Have Questions?

Talk to an Expert

Our U.S.-based team can help you choose the right gear, configure the perfect setup, or put together a custom quote for your project.

Payment & Security

  • Ach Direct Debit
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimated Delivery
Free shipping on every U.S. order

Type your ZIP code to see when your gear arrives at your door.

Please enter a valid 5-digit ZIP code.
Estimated Shipping Time

We offer free shipping on all orders across the contiguous United States. Orders are typically processed within 1–3 business days, and standard delivery takes 5–10 business days. Freight and oversized items take 10–21 business days and may require a scheduled delivery.

What Is Your Return Policy?

We offer a 30-day return window on eligible items from the date of delivery. Products must be unused, in original condition, and returned in their original packaging. To start a return, contact us at support@adventuremotion.com or call (877) 834-4299. Return shipping costs may apply for non-defective items. Damaged or defective items are replaced at no cost to you.

Frequently Asked Questions

Do you offer financing?

Yes — we partner with Affirm so you can split your purchase into easy monthly payments with 0% APR options. Just select Affirm at checkout.

Are you an authorized dealer?

Yes. Adventure Motion is an authorized online dealer for all brands we carry. That means your manufacturer warranty is fully valid and protected.

Can you help me choose the right product?

Absolutely. Call us at (877) 834-4299 or email support@adventuremotion.com — our team specializes in outdoor gear and can match you to the right product.

What if my item arrives damaged?

Contact us within 48 hours of delivery at support@adventuremotion.com. We'll arrange a replacement at zero cost to you — no questions asked.

Need items in bulk? Contact us for a custom quote or invoice.
Save an additional 3% off your order when paying via ACH or Wire transfer.

Save $120 Today

UP TO
15% OFF

Get up to 15% off sitewide. Or save an additional $120 off any order over $3,000 — use code AM120 at checkout.

AM120

The MotoTec Big Supermoto is a 50cc kids dirt bike built on the DB02 platform and fitted with larger knobby tires, making it a solid first machine for a young rider stepping up from pedal bikes. Its air-cooled 50cc two-stroke is EPA approved and pulls noticeably harder than a four-stroke of the same displacement, yet it stays simple to operate: a pull starter fires it up, and an auto centrifugal transmission means there is no clutch or shifting to learn. Twisting the grip is the whole technique.

Underneath the motocross bodywork sits a rigid steel frame sized to carry a child comfortably as they grow, with genuine outdoor rubber tires in a 13x4.10-6 fitment front and rear. Stopping is handled by a rear disc brake, and the padded single-rider seat sits 21 inches off the ground, low enough for shorter legs to plant confidently at a stop. The handlebars adjust for angle so the reach can be dialled in to the rider.

With a 1 liter tank the bike will run for 10 or more miles between fills and reaches a top speed of 25 mph, plenty for backyard laps, dirt lots and beginner trails in both dry and damp conditions. At 37 lbs dry it is light enough for an adult to lift into a truck bed or reposition on the trail, and the 60 inch wheelbase keeps it stable while a new rider is still learning throttle control. MotoTec recommends it for ages 13 and up.

California Riders: Important Restrictions

  • Classified for competition use only in California
  • Cannot be registered for OHRV registration
  • Cannot be registered with the California DMV under a green or red sticker
  • May only be ridden in competition on a closed course
  • Does not meet California emissions standards

⚠️ OFF-ROAD USE ONLY — NOT STREET LEGAL

This vehicle is designed exclusively for recreational off-road riding and is not street legal. It is intended for use on private property, dirt trails, motocross tracks, and designated off-road riding areas only. This product is NOT classified as a transportation vehicle and may not be operated on public roads, highways, sidewalks, bike lanes, or any public-access roadway. This product does not include a VIN, title, or registration and is sold strictly as recreational off-road sporting equipment. Always wear a DOT-approved helmet and appropriate protective gear. Off-road vehicle laws vary by state — riders are responsible for reviewing and complying with all applicable local regulations.

Engine & Fuel

  • Motor: 50cc 2-Stroke, Air Cooled (EPA Approved)
  • Gas/Oil Mixture: Unleaded, 25:1 ratio
  • Engine Start: Pull start
  • Gas Tank: 1 liter
  • Transmission: Auto centrifugal

Performance

  • Top Speed: 25 mph
  • Cruising Range: 10+ miles per tank

Chassis & Brakes

  • Brakes: Rear disc
  • Suspension: Rigid frame
  • Front Tires: 13x4.10-6
  • Rear Tires: 13x4.10-6
  • Chain: 25H, 79 link (158 pins)
  • Throttle: Variable twist-grip

Size & Fit

  • Recommended Age: 13+
  • Max Rider Weight: 150 lbs
  • Seat Height: 21 inches
  • Seat: Padded, single rider
  • Handlebars: Angle adjustable (not height)
  • Wheelbase: 60 inches

Dimensions

  • Bike Dimensions: 38 x 22 x 27 inches
  • Bike Dry Weight: 37 lbs
  • Box Size: 35 x 13 x 22 inches
  • Box Weight: 44 lbs

  • 50cc air-cooled two-stroke makes close to double the power of a comparable four-stroke
  • Auto centrifugal transmission removes shifting and clutch work for new riders
  • Easy pull start with an improved carburetor for reliable cold starts
  • Larger knobby tires front and rear for grip on dirt, grass and damp ground
  • Steel frame sized to keep working as a child grows
  • Rear disc brake gives predictable, progressive stopping power
  • 21 inch seat height lets shorter riders reach the ground at a stop
  • 37 lb dry weight makes loading and handling easy for a parent

MotoTec covers this unit with a 30-day parts-replacement warranty from the date of delivery against defects in materials and workmanship. Contact Adventure Motion support with your order number and photos of the issue to start a claim.

Normal wear items such as tires, tubes, brake pads, chains and batteries are not covered, and neither is damage from racing, jumping, collisions, improper assembly, modification, or riding beyond the rated limits.

What age is this dirt bike recommended for?
Mototec recommends riders aged 13 and up, and the bike carries a maximum rider weight of 150 lbs. an adult should supervise every ride and confirm the rider can comfortably reach the ground from the 21 inch seat.
Do i need to mix gas and oil?
Yes. this is a two-stroke engine, so it runs on unleaded gasoline pre-mixed with two-stroke oil at a 25:1 ratio. running straight gasoline will damage the engine.
How fast does it go and how far will it run?
Top speed is 25 mph, and the 1 liter tank is good for 10 or more miles of riding between fills.
Does the rider need to shift gears?
No. the bike uses an auto centrifugal transmission, so there is no clutch lever and no gears to change. the rider starts it with the pull starter and controls speed with the twist throttle.
Is it street legal?
No. this is a recreational off-road machine only and is not legal on public roads. in california it is classified for competition use on a closed course only, cannot be registered with the dmv or for ohrv use, and does not meet california emissions standards.
What safety gear should a young rider wear?
A properly fitted helmet is essential, along with eye protection, gloves, long sleeves and pants, and over-the-ankle boots. adult supervision is required at all times.

Customers also bought