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FREE 30-day refund/replacement
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Availability:
Unavailable
At a glance
- Condition
- New
- Color
- Black Matte
- Size
- Medium
- Model
- SM5 Solid Helmet
- Dimensions
- 17.2 x 11.4 x 12.7 in
- Material
- Thermoplastic
- Special Feature
- Lightweight, Ventilation, Visor
- In the box
- Alpinestars 8303123-110-M S-M5 Solid Helmet Black Matt Md
- Warranty
- 30 Days for Returns
Features 7
- Cotton/polyester blend
- Imported
- Lightweight outer shell made from impact resistant thermoplastic in three anatomical shell sizes, plus three individual EPS inner liner sizes with a combination of inner lining and cheek padding to offer 6 unique sizes and to ensure the best fitment and protection.
- An engineered raised area with padding effectively reduces the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact.
- Redesigned chin bars new profile, where the base area has been specifically sculpted to give a relief section, raised to clear the collarbone, with a new softer EPS liner which extends beyond the helmet shell itself, and is covered by a more flexible rubber compound providing a reduced chance of any sort of collarbone injury.
- Maximized ventilation and high levels of heat transfer exchange thanks to multi-air inlets and exhaust ports
- Complies with Federal Motor Vehicle Safety Standard 218 (FMVSS 218). The SM5 conforms to ECE R 22.06.
Description
The SM5 helmet has been designed to provide MX riders with a helmet that is safe and purposefully designed to deliver optimal protection and comfort. The lightweight SM5 helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight, while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption.
Specs 22
| Brand | Alpinestars |
|---|---|
| Color | Black Matte |
| Age Range (Description) | Adult |
| Size | Medium |
| Special Feature | Lightweight, Ventilation, Visor |
| Model Name | SM5 Solid Helmet |
| Outer Material | Thermoplastic Alloy |
| Recommended Uses For Product | Motorcycling |
| Item dimensions L x W x H | 17.2 x 11.4 x 12.7 inches |
| Athlete | Motorcycling |
| Inner Material | Expanded Polystyrene |
| Style | Racing |
| Item Package Dimensions L x W x H | 16.8 x 12.8 x 10.8 inches |
| Package Weight | 2.2 Kilograms |
| Item Dimensions LxWxH | 17.2 x 11.4 x 12.7 inches |
| Brand Name | Alpinestars |
| Material | Thermoplastic |
| Suggested Users | mens |
| Number of Items | 1 |
| Manufacturer | Alpinestars |
| Part Number | 8303123-110-M |
| Sport Type | Motocross |
No specs match.
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Very light
Color: Black Matte
Size: Medium
Very light, fits as expected, good quality, my son loves it.
Reviewed in the United States on December 29, 2025 by ashley
Very good helmet
Color: Black Matte
Size: Large
Great purchase
Reviewed in the United States on May 18, 2025 by Brae smith
Comfortable and great price
Color: White Glossy
Size: Large
This was a major upgrade for me having used a fly helmet before. I upgraded my riding gear and wanted a matching helmet so I gave this a shot and it was better than I ever expected. I would 100% recommend this helmet
Reviewed in the United States on October 18, 2024 by ALH
Cool helmet 👍
Just as most people say, the chin guard is noticeably close to your face, and for me it is very tight to put on but is nice and snug once it’s on (my head measures ~22.5 inches and I got a medium size helmet) overall a nice, well built helmet that looks very cool. Only complaint is the fit, just a bit too tight when putting on
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Reviewed in the United States on November 14, 2025 by Vinh-Son Thoi Vinh-Son Thoi
Helmet was nice but sent back
Color: Bright Red/Blue Glossy
Size: Large
The helmet itself was perfect but these run on the bigger side I wear large in fox for a tight fit but this in large was way to loose I could turn side to side while I my head and to much movement up and down be aware of the size running bigger than normal
Reviewed in the United States on July 25, 2024 by Sheldon Walters
Beautiful
Color: Bright Red/Blue Glossy
Size: Large
the material is excellent
Reviewed in the United States on March 23, 2024 by Marcos Marcos
Great fit
Great fit and look. Large. Fit the same as the last brand I had
Reviewed in the United States on December 1, 2025 by Wettek