Recommended for small kid. The 4-stroke engines have proven to be more reliable and durable than the 2-stroke engines. High Quality engine. Whole bike
X-PRO Hawk Mini Dirt Bike, Gas Power 4 Stroke Dirt Bike! 40CC Pit Bike, Pull Start, 10 Wheels! (Black) : Automotive
MotoTec Villain Introducing the MotoTec 52cc Villain Kids Dirt Bike - The perfect kids starter dirt bike. The latest generation of 52cc mini bike engines are faster, torquier, more reliable and even easier to set up and start than ever before. 2-Stroke engines are preferred as they provide almost double the power of the same size 4-stroke. Easy pull start, improved carburetor and all of the standard safety features, support and reliability MotoTec provides.
MotoTec Warrior 52cc 2 Stroke Kids Gas Dirt Bike - Green
Mini Gas Power Pocket Bike for Kids Motorcycle, 40CC 4-Stroke Ride on Toys, Dual Brake, Max Speed 20 Mph, Max Weight 165 LB, Age 8+
X-PRO Hawk Mini Dirt Bike, Gas Power 4 Stroke Dirt Bike! 40CC Pit Bike, Pull Start, 10 Wheels! (Blue) : Automotive
X-Pro Brand New Typhoon 40cc Gas Pit Dirt Bike, 4 Stroke Mini Motorcycle for Kids with Pull Start
Mini Gas Power Pocket Bike for Kids Motorcycle, 40CC 4-Stroke Ride on Toys, Dual Brake, Max Speed 20 Mph, Max Weight 165 LB, Age 8+
49CC 2-Stroke Gas Power Mini Dirt Bike Dirt Off Road Motorcycle (Green) : Sports & Outdoors
X-Pro Brand New Typhoon 40cc Gas Pit Dirt Bike, 4 Stroke Mini Motorcycle for Kids with Pull Start
15 Best Mini Bikes: Fun & Safety On Two Wheels (Guide)
Powerful 40cc motor puts out strong, predictable power! Single cylinder, 4-stroke, air cooling. 40cc engine powerful than regular 50cc engine. More
X-PRO Zephyr 40cc Mini Dirt Bike Gas Powered 4 Stroke Kids Pit Bikes Off Road