SM3 Radium Helmet — XL, Black gloss

ALPINESTARS(MX) SM3 Radium Helmet — XL, Black gloss

ALPINESTARS(MX)
0110-9157
8300726-1546-XL

Off-road helmet engineered for MX and enduro with a thermo-injected shell, low-friction EPS liner, patented visor release and high ventilation.

Hurry! only 4 items left in stock.
€171.84
€209.95
Save €38.11
In stock, ships within 24-48 hours.
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  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

Designed for MX, enduro and off-road riding, the SM3 Radium Helmet blends protection, comfort and ease of use. 🪖⚡

  • Thermo-injected shell made from a special polymer blend with variable thickness to optimize impact protection while keeping weight low.
  • Patented low-friction coating on the inner EPS liner reduces rotational acceleration in oblique impacts by creating a slip plane similar to cerebrospinal fluid.
  • Patented visor release system disengages at a predetermined force to help reduce neck loads during an impact.
  • Maximized ventilation with 10 inlets and 7 exhaust ports for efficient heat transfer and sustained airflow.
: 0110-9157
: 4 Items
In Stock

Data sheet

Type
Off-Road, MX
Units
Each
Color/Finish
Black, Gray, White
Base Color
Black
Base Finish
Gloss
Gender
Unisex
Shell Material
ABS
Size
XL
Size Group
Adult
Brand
ALPINESTARS

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.