Name: Alpinestars SM3 Radium Helmet
Brand: Alpinestars
SKU: PU-0110-8996
Price: 274.95 USD
Availability: InStock

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Front Left Side View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Front View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Right Side View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Rear Right Side View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Rear View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Left Side View

Alpinestars SM3 Radium Helmet Gloss Black/White/Gray - Top Down View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Front Left Side View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Right Side View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Rear View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Left Side View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Top Down View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Rear Right Side View

Alpinestars SM3 Radium Helmet Gloss Black/Red Fluo/White - Front View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Front Left Side View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Left Side View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Top Down View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Front View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Right Side View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Rear Right Side View

Alpinestars SM3 Radium Helmet Matte Gray/Black/Yellow Fluo - Rear View

$274.95

Shipping calculated at checkout.

Select Color

Select Size

XSM

SML

MED

LRG

XLG

2XL

We are happy to refund or exchange any item in new, unused, or unwashed condition with all manufacturer’s packaging and tags intact. Please note that this applies only to riding gear and apparel; we do not offer returns for Electrics.

Read the full policy HERE.

We will match any advertised price on new products from local and online competitors*. Certain restrictions apply.

*Read the full Guarantee HERE.

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Varied thickness shell construction for optimized protection and light weight
Optimized for MX, Enduro, and Offroad use
Delivers blend of performance, protection, and comfort

Key Features

Features thermo-injected shell incorporating a polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight
Lightweight outer shell is constructed from impact resistant thermoplastic
Inner shell constructed with a composite fiber assembled between the outer shell and the EPS liner for maximum protection against impacts
Fit can be tailored to the rider's head thanks to the helmet's crown and cheek pads

Construction

Multiple density inner liner ensures the helmet is equipped with the correct density in the correct area for enhanced impact absorption, while also helping to reduce overall weight
6-piece EPS liner with three different densities
Polished inner EPS liner with special coating to reduce friction with comfort liner for rotational impact management
The inner and outer surfaces are engineered to minimize the effects of oblique impacts
Low friction coating is applied to the inner part of the main EPS liner to reduce the rotational acceleration forces that can result form certain oblique impacts
Maximized ventilation and high levels of heat transfer exchange thanks to ten inlets and seven exhaust ports
The visor has been designed to direct air into the ports for enhanced airflow
Visor release system ensures the visor is released with the correct pre-determined amount of force, effectively reducing the forces on the rider's neck during an impact
Comfort liner is constructed using recycled materials for a lower carbon footprint
Hydration tube channels are integrated into the helmet's cheek pads for convenience and performance
Soft textile chin strap is 25 mm for optimal safety and rider comfort

Protection

Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort
Chin area optimized for superior impact performance
Stainless steel D-rings ensure a tight and secure fit

Alpinestars SM3 Radium Helmet

Alpinestars SM3 Radium Helmet

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