Buy Coolster 3125B2 125cc Kids ATV: Youth Sport ATV
Buy Coolster 3125B2 125cc Kids ATV from Minibikes For Sale. The Coolster 3125B2 is a compact 125cc kids sport ATV for ages 9 to 12 with automatic CVT with reverse and electric start.
Age: 9 to 12. Transmission: automatic CVT with reverse. Check local rules and always ride with proper protective gear.
Coolster 3125B2 Specifications
| Engine | 125cc 4-stroke |
| Type | Youth Sport ATV |
| Age | 9 to 12 |
| Transmission | Automatic CVT with reverse |
Follow the manufacturer age guidance. Riders must wear a helmet and protective gear, and young riders need adult supervision.
Why Buy Coolster 3125B2 125cc Kids ATV
Quality four-wheelers last for years. When you buy the Coolster 3125B2 125cc Kids ATV, you invest in many seasons of riding.
- Engine. 125cc 4-stroke.
- Compact. Right size.
- Electric start. Easy.
- Easy care. Simple routine maintenance.
Who It Suits
- Kids ages 9 to 12: with adult supervision.
- Families: backyard and trail fun.
Before You Ride
Check fluids, tire pressure, brakes and controls before each ride. Wear a helmet and protective gear, never carry passengers on single-rider ATVs, and ride on private land or permitted trails.
Frequently Asked Questions
Why buy Coolster 3125B2 125cc Kids ATV from Minibikes For Sale?
We describe every product clearly, answer questions quickly and help you choose the right model before you order.
What engine does the Coolster 3125B2 use?
125cc 4-stroke.
Who is the Coolster 3125B2 for?
Kids ages 9 to 12 and families.
How is it shipped?
It ships crated by freight with tracking. Some assembly and fluids may be required.
Learn More
For ATV rider training and safety guidance, visit the ATV Safety Institute.
Order Your Coolster 3125B2
Ready to buy Coolster 3125B2 125cc Kids ATV? Add it to your cart today or contact us with any questions about this model. You can also browse more kids atvs in our store.









Miles Hughes (verified owner) –
The engine sounds great.
Andrew Johnson (verified owner) –
This ATV is very enjoyable.
Benjamin Young (verified owner) –
I like how stable it feels.
Joseph King (verified owner) –
The design looks aggressive and modern.
Andrew Johnson (verified owner) –
It rides smoothly even on rocks.
Julio Cabrera –
The acceleration is quick but still controllable.
Martin Salazar –
It’s powerful enough for tough tasks but still fun to ride.
Logan Rivera –
The tires grip really well, even in muddy conditions.
Nicholas Clark –
The tires grip really well, even in muddy conditions.
Eric Murphy –
The braking system is responsive and reliable.
Matthew Wilson –
I’ve had mine for months now, and it still runs like new.
Raul Medina –
It’s a dependable ATV that I can count on every time.
Steven Jackson –
I’ve had mine for months now, and it still runs like new.
Miguel Sanchez (verified owner) –
I like how well it corners.
Carlos Ramirez –
Fuel consumption is reasonable. I can ride for hours before needing to refill.
Jason Bell –
It’s tough and durable. I’ve taken it through mud and rocks, and it keeps going.
Eric Murphy –
I love how easy it is to maintain—basic servicing is straightforward.