

🏁 Ride Fast, Ride Smart — Own the Dirt, Own the Moment!
The SUNDERWELL 40cc Mini Dirt Bike is a compact, 4-stroke gas-powered bike designed for teens and beginners. Featuring a pull-start engine that requires no oil blending, it delivers speeds up to 19mph. Equipped with front forks, rear shock absorbers, and cooperative disc brakes, it offers a stable, comfortable, and safe riding experience. With a max load capacity of 165 lbs and durable 2.5-10 tires, this 55-pound bike is the perfect gateway to outdoor adventure and adrenaline-fueled fun.








| ASIN | B0FGXFVBG6 |
| Best Sellers Rank | #577,970 in Automotive ( See Top 100 in Automotive ) #165 in Motorcycles & ATVs |
| Brand Name | SUNDERWELL |
| Customer Reviews | 3.1 out of 5 stars 21 Reviews |
| Included Components | dirt bike |
| Is Assembly Required | Yes |
| Item Dimensions | 51.18 x 31.1 x 22 inches |
| Item Dimensions L x W x H | 51.18"L x 31.1"W x 22"H |
| Item Type Name | SUNDERWELL 40cc Mini Dirt Bike, Gas Bike with Front Fork, Shock Absorber and Soft Seat Cushion, Max Load 165Lbs, Pull Start Cooperate Disc Brakes and Up to 19mph (Green) |
| Item Weight | 55 Pounds |
| Manufacturer | BKAA GROUP CORPORATION |
| Manufacturer Maximum Age (MONTHS) | 240 |
| Manufacturer Minimum Age (MONTHS) | 156 |
| Material Type | Iron |
| Size | 51.18"Lx22"Wx31.1"H |
| Sub Brand | SUNDERWELL |
| Theme | Sport |
| Unit Count | 1.0 Count |
T**G
4.5 stars
Great starter bike. My son loves it. 10 year old. Only thing is packing can be more durable please. Came in with a broken front fender due to delivery issues.
A**R
Disappointed
When I purchased this bike it clearly said 50cc in the description. I received a 39cc bike and I notice the description changed. If I hadn’t already put it together and started it, I would return it. The engine doesn’t run that great and I’m very disappointed in the false advertising. I would have bought a different bike. I see others have also had this problem.
A**R
Great starter dirt bike for the price!
Great starter bike for my 7 year old grandson. Seems well made for a Chinese product. The seat is not soft but ok for a kid. Love the disc breaks on front and rear. Also love that all the hot areas around the engine are covered with plastic. Shipping was fast for me. The first one I ordered, different bike and supplier, didn't tell me until I asked a week later that they did not have it in stock. gave me 5 days left to find another. Glad it happened as this one is a 4 stroke, less carb issues in my opinion than the 2 strokes, and this one came in 3 days after ordered. Very impressed and saved my grandsons Christmas! One issue I had on assembly was the front caliper bolt was on so tight, I had to use vise grips to loosen it so that I could install the second bolt because it was bending my Craftsman allen wrench. It comes with one bolt installed and the caliper tilted up for shipping. So far it starts pretty easy however every once in awhile the puller doesn't engage the engine. Not sure if this is going to be problem in the future or not. But for me I push the priming bulb 4 times, close the choke and it starts on the first or second pull. So far very happy with it.
A**R
Didn’t work at first
Got the bike and the pull string was broken. I spent two hours fixing it, but afterwards it ran fine.
M**N
Best Christmas gift
My grandson loves his little dirt bike and never gets off of it!
H**R
Missing screw that hold that in place
Missing the screws to hold
T**T
It showed up completely broken and missing 4 bolts
It literally showed up broken and ruined my 6yr olds Christmas morning. Save your money and don’t buy this garbage. Please
C**T
so fun
My 10-year-old nailed it on the first try! So stable and fun. The look on his face was priceless! Best surprise ever. He's on it every day after school. Total success.
Trustpilot
1 week ago
4 days ago