Alpinestars SM3 Youth Deegan Motocross Helmet
- ECE06 and DOT, meets FMVSS 218
- Three youth-specific shell sizes, Large
- Ten intake vents, seven exhaust ports
- Multi-density EPS with low-friction coating
- Adjustable crown and cheek pads for growth
- 4.2 pounds listed weight
Updated 21 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A youth motocross helmet with rotational impact coating, a breakaway visor and pads that adjust as a child grows. The listing mixes two graphic names, so confirm the colorway before ordering.
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ASIN: B0D9WJXD2MModel: SM3Category: Motorcycle Helmets
Colors Available
Sizes Available
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Overview
Fitting a young rider for motocross, enduro or trail days is what this Alpinestars youth helmet is for. Swap the crown and cheek pads as the child grows, set the visor, and the thermo injected shell and multi density liner handle impacts.
Parents get adult level safety features scaled to a child, including a coated liner that reduces rotational forces and a visor that releases to spare the neck. The listing names one graphic in the title and another in the specs, so check the photo and color.
Who it's for
Kids racing or trail riding dirt bikes will benefit from the adjustable pads and breakaway visor. Riders who need a road helmet with a shield should look at a full face street model.
Pros and cons
- Pads adjust as the rider grows
- Low-friction liner coating
- Visor releases to reduce neck loading
- Generous vent count
- Goggles not included
- Graphic name differs title vs specs
- Only a return window listed, no warranty
Performance notes
Protection in angled impacts depends on the low friction liner coating letting the head slide slightly, which cuts rotational force. Fit stays right over time because pads can be swapped as the head grows. Cooling relies on intake vents and exhaust ports working with channels at the visor.
Specifications
| Brand | Alpinestars |
|---|---|
| Model | SM3 |
| Dimensions & fit | |
| Item weight | 4.2 pounds |
| Size | Large |
| Construction & materials | |
| Shell Type | Hard, thermo-injected, three youth-specific sizes |
| Color | Black/Orange/Yellow Fluo Glossy |
| Material Type | Expanded Polystyrene (EPS), Plastic |
| Warranty & support | |
| Warranty Description | 30 days for exchanges & returns |
| Other details | |
| Certificate Type | DOT |
| Closure Type | chin strap |
| Shape | Aerodynamic |
| Number Of Vents | ten intake, seven exhaust |
| Sport Type | Motocross |
| Specification Met | ECE06, DOT, FMVSS 218 |
| Safety features | Low-friction EPS coating, visor release system |
Frequently asked questions
Will the Alpinestars SM3 Youth fit as my child grows?
The crown and cheek pads are customizable to maintain fit as the rider grows. The shell size itself stays the same.
Is it ECE certified?
Yes. It meets ECE06 and DOT and FMVSS 218.
What does the visor release do?
It is a patented release system designed to reduce neck loading in an impact.
Which graphic is this?
The title says Deegan while the specs list SM3 Youth Fray in Black/Orange/Yellow Fluo Glossy. Check the product photo before ordering.