Coolster
Coolster ATV-3125R2 125 Youth ATV
Coolster ATV-3125R2 125 Youth ATV
SKU: ATV-3125R2-GREEN
- Regular price
- Price: $1,099.00
- Regular price
- List Price: $1,299.00
- Sale price
- Price: $1,099.00
- Unit price
- per
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Low stock: 5 left
PRODUCT DESCRIPTION
A true 125cc in a mini sized frame. More engine than the 3050B2, same easy 23.6 inch seat.
| Rider | Our call: 8 to 12 |
|---|---|
| Seat height | 23.6 inches (600 mm) |
| Transmission | Fully automatic, nothing to shift |
| Parental controls | Adjustable throttle limiter is standard on youth ATVs under the CPSC youth standard. We confirm it on your unit before it ships. |
Rider age is our recommendation, not the manufacturer's. Coolster does not publish a recommended age for this model, and we would rather give you our honest read than leave the row blank. Seat height and transmission are straight off their spec sheet. Our size guide walks the whole thing through in two minutes.
This is the one that surprises people. Coolster publishes a full 125cc displacement here, not the 120cc you get on most of the badged 125 machines, and they put it in a compact chassis that only sits 600mm off the ground.
Fully automatic, electric start, hydraulic disc on the rear. Six colors, and Coolster added a Red for 2025.
Who this one is for
Riders roughly eight to twelve who have some seat time and are ready for more than a mini quad, but who are not yet tall enough for a full size machine. Also a good pick for a family with two kids of different sizes, because the low seat suits both.
What you get
- 125cc single cylinder four stroke, natural air cooling, fully automatic
- Electric start, 12V 5Ah battery
- 23.6 inch seat height in a mini sized frame
- 16 x 8 tires front and rear at 10 psi
- Hydraulic disc rear brake, drum front
- 165 pound maximum load including rider
- Six colors: Green, Pink, Blue, Orange, Black and Red
Specifications
| Model Number | ATV-3125R2 |
|---|---|
| Engine Type | Single Cylinder, 4-Stroke, Natural Air Cooling |
| Displacement | 125cc |
| Max Torque | 6.9N.m/6,500 ± 500r/min |
| Max Power | 5.5kW/8,000 ± 500r/min |
| Bore Stroke | 52.4 x 55.5mm |
| Ignition | CDI |
| Starting System | Electric |
| Battery | 12V, 5Ah |
| Clutch | Automatic |
| Transmission | Chain, Rear Wheel Drive |
| Brakes Front/Rear | Drum/Hydraulic Disc |
| Tires Front/Rear | 16 x 8-7 / 16 x 8-7 (10 Psi for both) |
| Fuel Capacity | 0.54 gallons / 2.06L |
| Weight | Gross 177.4 lbs / 80.5 kg, Net 173.9 lbs / 78.9 kg |
| Max Load | 165 lbs / 75 kg (rider, all cargo and accessories) |
| Wheelbase | 850 mm / 33.5 inches |
| Dimensions | 1,345 x 785 x 850 mm |
| Height to Seat | 600 mm / 23.6 inches |
| Min. Ground Clearance | 95 mm / 3.7 inches |
Every figure above is copied from Coolster's own published specification table for model ATV-3125R2, read on 28 August 2026. Where a metric value was published we added the imperial conversion in brackets and changed nothing else. Manufacturer reserves the right to change specifications without notice.
Questions people actually ask
Is a 125cc too much engine for a kid?
Displacement is not what determines how fast a kid goes. The throttle limiter is. A 125cc quad set at its lowest limiter position is slower than a bicycle, and you open it up as they earn it. What matters far more is whether they can flat foot the seat.
Why is this listed as a true 125 when everything else is 120?
Because Coolster's spec sheet for this model says 125cc. Most of the badged 125 machines in the category say 120cc on the sheet. We print what the sheet says, either way.
Is the Red the same machine?
Yes. Coolster added Red for 2025 and it is mechanically identical to the other five.
Does it have a rear rack?
Yes, there is a rack over the rear. Treat it as a place for a jacket and a water bottle, not for real cargo, given the 165 pound total load rating.
Before you buy
- Shipping and freight: free to the lower 48, curbside with a liftgate included, and exactly what to do if the crate arrives damaged.
- Assembly and setup: the one to two hours between the crate and the first ride.
- Warranty: what is covered, what counts as a wear item, in plain English.
- Safety first: gear, rules and supervision. Please read this one.
- Compare all 13 machines on rider age, seat height, real displacement and machine weight, on one page.
We would rather sell you one machine your family enjoys for years than rush you into the wrong one. Not sure about size? Run the Rider Fit Finder, or just call us. Nobody here works on commission.
