This merchandise cannot be sold to:CA.
SYX MOTO MK 40cc 4-Stroke Kids Mini Dirt Bike – Automatic Gas Pocket Bike with Pull Start, EPA Approved
SYX MOTO MK 40cc 4-Stroke Kids Mini Dirt Bike – Automatic Gas Pocket Bike with Pull Start, EPA Approved
40cc Kids Off-Road Trail Bike with Speed Governor & Automatic Drive
Shipping Fee: $99.99
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Shipping Notice
Shipping Notice
1. This product ships to 47 Continental States in the USA. Please note that this model is not CA legal. So we do NOT ship it to CA.
2. Receiving time = Processing time + Shipping time.
Processing: usually 1-2 business days.
Shipping time: usually 1-5 days.
Restricted Areas
Restricted Areas
This merchandise cannot be sold to:CA.
Specifications
Specifications
| OVERVIEWS | |
| MODEL NUMBER AND NAME | KXD708B-1(MK40) |
| TOP DESIGNED SPEED | 18.64 mph (30KM/H) |
| MAX RANGE | 15.53 miles (25KM) |
| MAX LOAD | 132 LBS (60KG) |
| RECOMMENDED USER AGE | 12+ years old |
| ENGINE | |
| ENGINE TYPE | 40cc, single cylinder, 4 stroke, air cooled, downward cam, vertical, pull start |
| DISPLACEMENT | 38.95 cc |
| BORE*STROKE | 40mm |
| COMPRESSION RATE | 9.6:1 |
| STARTING MODE | Pull Start |
| IDLE SPEED | 3000±150 rpmz |
| SPARK PLUG TYPE | CM7H |
| FUEL GRADE | ≥90# |
| LUBRICATION TYPE | Negative pressure splash lubrication |
| LUBRICATION OIL GRADE | SF 10W/30 or equivalent model |
| CARBURETOR TYPE | Engine dedicated |
| AIR FILTER | Sponge |
| COOLING TYPE | Air Cooled |
| TRANSMISSION | |
| TRANSMISSION TYPE | Automatic |
| NUMBER OF SPEEDS | No gear |
| DRIVE MODE | Chain |
| CHASSIS | |
| FRAME | Iron |
| HANDLE BAR | Iron |
| TRIPLE CLAMP | aluminum |
| SWING ARM | Iron plate forming |
| FOOTPEGS | Iron |
| MUFFLER TYPE | Engine with exhaust, front exhaust |
| CHAIN | T8F 140L |
| WHEEL BASE | 32.3 inches (820mm) |
| GROUND CLEARANCE | 7.9 inches (200mm) |
| TURNING CIRCLE DIAMETER | 51.2 inches (1300mm) |
| SEAT HEIGHT | 23.6 inches (600mm) |
| HANDLEBAR HEIGHT | 29.9 inches (760mm) |
| BRAKE & SUSPENSIONS | |
| BRAKE OPERATION MODE | Front and rear mechnicial disc brakes |
| SHOCK ABSORBER-FRONT LENGTH | 530mm |
| SHOCK ABSORBER-REAR LENGTH | 8x190mm |
| TYRE TYPE-FRONT | 2.50-10 |
| TYRE TYPE-REAR | 2.50-10 |
| RIM TYPE-FRONT | aluminum/Black |
| RIM TYPE-REAR | aluminum/Black |
| DIMENSIONS | |
| FUEL TANK CAPACITY | 0.27 US Gallon (1.0L) |
| BIKE SIZE |
48.43 x 23.62 x 31.50 inches (1230x600x800mm)
|
| PACKING SIZE |
42.13 x 11.81 x 21.46 inches (1070x300x545mm)
|
| DRY WEIGHT | 49.6 LBS (22.5KG) |
| WET WEIGHT | 51.4 LBS (23.3KG) |
| SHIPPING WEIGHT | 59.5 LBS (27KG) |
| CURB WEIGHT | 183.6 LBS (83.3KG) |
Model Number
Model Number
MK
Warranty Policy
Warranty Policy
We warranty the products to be free of material defects in workmanship for the warranty period from the date your product is delivered. Damages on Arrival shall be notified WITHIN 3 BUSINESS DAYS UPON DELIVERED.
Engine is covered to be free from manufacturer defect for three (3) months.
Parts are covered under warranty to be free from manufacturer defects for one (1) month.
Policy Link:Warranty Policy
Beginner-Friendly Automatic Ride No clutch, no manual shifting, no hassle. The fully automatic transmission allows young riders to focus entirely on balance, steering, and confidence-building. Just pull start and smooth throttle control takes over.
Safety-Focused Design & Speed Control Equipped with a built-in speed governor to limit maximum velocity, an instant kill switch for emergencies, and dual front & rear mechanical disc brakes. The specially sized brake levers are optimized for smaller hands to grip effortlessly.
Clean & Quiet 4-Stroke Engine Powered by a reliable 38.95cc 4-stroke engine—no messy oil-gas mixing required. It delivers a smoother ride and runs significantly quieter than traditional 2-stroke mini bikes, keeping the neighbors happy.
Rugged Construction & Durable Iron Tank Features a heavy-duty iron frame and an impact-resistant iron gas tank built to withstand the bumps and scrapes of backyard exploration. Keeps fuel secure during outdoor adventures.
All-Terrain Off-Road Capability Tough 10-inch knobby tires combined with front and rear suspension handle grass, dirt tracks, and uneven backyard trails with ease, expanding outdoor sport possibilities.
EPA Approved & Environmentally Friendly Meets strict EPA standards for emissions and efficiency. Designed for long-lasting engine life and hours of outdoor recreation.
Kickstart your child's outdoor sports journey with the SYX MOTO MK 40cc 4-Stroke Mini Dirt Bike. Specifically engineered for youth riders (Ages 12+) ready to experience the thrill of off-road riding, this mini gas bike combines manageable power with essential safety features.
Powered by a fuel-efficient 40cc 4-stroke engine, it eliminates the need to mix oil and gas—just fill up with standard regular unleaded fuel and go. With a top designed speed of 18.64 mph and a maximum load capacity of 132 lbs, it delivers the perfect balance of excitement and control. The fully automatic transmission means no complicated gears or clutches to learn, making it the ultimate entry-level choice for beginners tracking private trails or riding in the backyard.
Important Safety Notice: Always wear a helmet and protective gear while riding. Designed for use on private property and designated off-road trails only. Adult supervision is required at all times.
Adult supervision required for children under age 16. Always wear a DOT-compliant helmet, goggles, long sleeves, long pants, over-the-ankle boots, and gloves. This vehicle is intended for off-road recreational use only.Not street legal. Check local laws before operating.
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Questions & Answers
Have a Question?
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Can it be equipped with training wheels
Yes. You can order the training wheels here: https://syxmoto.com/products/syxmoto-kids-dirt-bike-training-wheel?_pos=1&_sid=7f1a6f08d&_ss=r
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Does it come with oil in the engine or do I need to add it?
Hi, it does come with oil in the engine. But I suggest you checking it before starting. See the notes before starting the bike: https://youtu.be/gB7Vl2Zx0dI?si=-Jrmt3f6etJo9-Zf