SKU: 47061995177

Alpinestars - SM8 Radium 2 Helmet

Sale price$197.98 Regular price$219.98
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Shipping Estimate
USA
  • USA
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

Alpinestars - SM8 Radium 2 HelmetAlpinestars SM8 Radium 2 Helmet The S M8s design is coherent to Alpinestars philosophy and shares distinctive themes with other products in the portfolio; a smooth, attractive, profile which is streamlined and free of any external channels and features that might act as a load point in an impact, or compromise the overall integrity of the construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most

Alpinestars - SM8 Radium 2 Helmet

The S-M8’s design is coherent to Alpinestars philosophy and shares distinctive themes with other products in the portfolio; a smooth, attractive, profile which is streamlined and free of any external channels and features that might act as a load point in an impact, or compromise the overall integrity of the construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most efficient transfer of energy to protect the rider’s head from direct force to the skull and referred to the neck and spinal column. The aperture is designed to accommodate a wide variety of goggles and the air vents in the shell are located to maximize ventilation efficiency.

Features: 

  • The S-M8 shell has been profiled with performance as a priority and with a design style that identifies the profile of the helmet and its sculpted surface as uniquely ‘Alpinestars’.
  • Another key feature is the S-M8 shell sizeng solution; each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs worldwide.
  • The helmet’s shell construction utilizes a highly advanced molding technology with a multi-composite combination: Carbon, high density carbon outer layer that improves strength and efficiency of energy dissipation over the shell.
  • Uni-directional carbon composite layer that gives significantly greater radial strength around the shell, preventing compression but allowing controlled deflection for reducing transmitted impact energy.
  • Aramid fiber layer which provides critical penetration protection.
  • This combination of layers is given even greater performance with an epoxy resin bonding that offers the best possible strength and energy management; limited outer shell deflection means the energy spreads wider and is better absorbed by the EPS liner.
  • The result of the unique shell lay-up process employed in the S-M8 construction results in extremely effective impact protection. With a fully equipped helmet testing facility, within Alpinestars Racing Development Center, an exhaustive impact research program has resulted in the Supertech M8 returning linear and oblique impact performance which far improves upon current helmet regulation standard limits. For direct, linear, impact by an average magnitude of 41% and for rotational acceleration, oblique, impact performance by an average of 48%. 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47061995177

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Jackie
Bozeman, US
★★★★★ 2
Glitter spray does not say on like it says it should it flakes off all day everywhere
It says its that the glitter is suppose to last all day long but it does not, it flakes off very easily and sticks to EVERYTHING but where it is suppose to.
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Reviewed in the United States on October 31, 2025
M
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Mychelle L.
Grantham, US
★★★★★ 5
Shine, not glitter.
Color: Gold
I love this! I thought it was glitter, but its shine.
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Reviewed in the United States on March 4, 2026
J
Verified Purchase
Jenny
Battle Creek, US
★★★★★ 5
Very pretty
Color: Silver
Pretty spray glitter. Sprayed it in my braids and it lasted all day.
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Reviewed in the United States on March 7, 2026
P
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Piink coco
New York, US
★★★★★ 1
NOOOO
Color: Gold
Do not buy !!! The glitter does not show up at all not sure if it’s because we are a darker skin tone but it’s a waste and it smells bad
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Reviewed in the United States on February 10, 2025
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Izzy
Draper, US
★★★★★ 5
Perfect shimmer!
Color: Gold
Adds just the right shimmer for, well, anything! I know I don’t need a reason to shine! Love my glitter!
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Reviewed in the United States on October 10, 2025

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