Alpinestars SM5
The SM5 is the newest motocross helmet by the Italian brand Alpinestars. It is filled with advanced technical features while being competitively priced. At V1mx you will find all latest designs. On the bottom of the page you will find more information about the technical features.
Alpinestars SM5 features
The SM5 helmet is the result of more than five years of intensive study, development and testing. Alpinestars has focused on every aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort.
Shell
This lightweight 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. 2 shell sizes and 3 EPS sizes help to create a great fit for all rider sizes.
Protection
Five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Alpinestars also engineered the inner and outer surfaces to minimize the effects of an oblique impact. These two features combines with the strong outer shell offer great levels of protection to offroad riders.
Peak release system
The Alpinestars SM5 is equipped with a peak release system. As soon as you make a hard impact on the ground, the peak will go off the helmet. This reduces the chance of injury to the neck. An impact on a traditional helmet can cause large stresses on the neck which can be harmful. Alpinestars protects your spine with this release system. The unique design features click tabs that ensure a strong attachment, to prevent accidental releases of the peak.
Emergency system and Hydration
Removing a normal helmet from a rider after a crash can be dangerous because you have to pull hard on their neck. This helmet has an emergency removal system that allows the cheek pads to be removed via the bottom. After the cheek pads are removed more space is created to allow the medical team to safely remove the helmet from the fallen rider. This helmet can also be used with a hydration bag, thanks to the loops on the cheek pad area where the hydration hose can be mounted through.
Collarbone protection
The bottom of the motocross helmet is raised to prevent contact with the collarbone as much as possible. This is specially designed for riders who chose not to wear a neck brace. It is a good feature since collarbone fractures are relatively common in motocross racing. In addition to having a raised area, soft materials have also been applied. Should there still be contact between the collarbone and the motocross helmet, this impact will be damped. In order to preserve the strength of the chinbar, Alpinestars has applied a low weight radial ledge in the chinbar.
Ventilation
Ventilation is an area where Alpinestars has set a new standard. This entire Alpinestars motocross helmet is constructed to improve air flow. The Alpinestars Supertech SM5 has a very aero dynamical design. Air flow that reaches the front of the helmet is led to the ventilation openings for additional air intake. Even the shape of the peak contributes to better ventilation. It has many inlet vents that supply fresh air to the rider. Inside the helmet, various channels ensure good flow and cooling where necessary. Hot and humid air is discharged through various large ventilation openings at the back and side of the SM5 helmet.
Supertech SM5 Sizes
The size table of the SM5 helmet is shown below. You can easily measure the circumference of your head by using a measuring tape. Wrap it around your head, about 2cm above your eyebrows. Keep the measuring tape above your ears and measure the largest size.
| Helmet Size | Circumference (cm) |
|---|---|
| XS | 53 - 54 |
| S | 55 - 56 |
| M | 57 - 58 |
| L | 59 - 60 |
| XL | 61 - 62 |
| XXL | 63 - 64 |
Is the size not to your liking? You can easily return or exchange it with the supplied return form. At V1mx, a 30-day reflection period is used, to make sure you have enough time to decide on your purchase.
Questions
Do you want to order this Alpinestars motocross helmet, but still have a question about the product or about placing an order? Please contact the V1mx customer service. We would be happy to help you.