Skip to Main Content
Free Shipping
over $39.99

Orders $39.99 or more ship free within the contiguous U.S.

Free Shipping Policy
No-Hassle
Returns

Doesn't fit? Don't love it?

Return any unused item within 30 days for a full refund.

No-Hassle Returns

  1. Obtain an RA number
  2. Package your product
  3. Send it back to us!
Return Policy
Lowest Price,
Guaranteed

Found it for less?

RevZilla will match any advertised price on new merchandise available through another authorized U.S. dealer.

Submit a Price Match

Elite Service Rating

Our goal is to provide the best possible shopping experience to every enthusiast who visits RevZilla.

See what our customers are saying about us:

Customer Reviews

ZillaCash Rewards Program

Earn $5 for every qualified $100 you spend. You'll also hear about special offers and events! How it works:

1

Sign in or create an account to earn ZillaCash on your next purchase with us.

2

Earn $5 for every $100 you spend on eligible items and brands.

3

Redeem your ZillaCash Rewards on a future order with us!

See our customer service page for more details.

Alpinestars

Alpinestars Supertech S-M8 Radium Helmet

Item: P650394

Oy, mate! The S-M8 was built on Alpinestars' philosophy to enhance performance, improve protection and provide comfort. Read More

$499.95
Rebate Available! View Details
Please select a Color & Size to view availability.
Alpinestars Supertech S-M8 Radium Helmet
(1 item)
Demo - Good
$399.96

Product Details

Alpinestars Supertech M8 Radium Helmet

Years of experience designing and manufacturing innovative motorsports technology has given Alpinestars a mastery in outfitting racers, drivers and riders of all types. The Alpinestars Supertech S-M8 helmet was built from the ground up to be comfortable and protective while still offering high levels of performance for off-road riding and motocross. The Supertech S-M8 Helmet is constructed of a multi-composite shell and multi-density EPS polymer for for keeping impact energy from reaching your head. Multi-directional Impact Protection System (MIPS) reduces slow glancing rotational impact energy that commonly causes concussions on off-road rides. Emergency release cheek pads along with the "Eject" inflation system allow for emergency removal of the helmet with less stress and movement on the spine.

Four shell sizes spread across the XS-2XL size range help keep a low profile and lightweight helmet that fits well. A micro-adjustable pad fine tunes the helmet tilt so you'll have the optimum view out of the eye port no matter what your riding style. Specially designed vents flow air into the helmet around your head to improve comfort when things heat up. Fit a hydration system tube into either side of the helmet to stay hydrated on your next enduro or casual ride.

The Alpinestars S-M8 Helmet is packed full or safety and comfort features, perfect for your single track ride or motocross race.

Features:

  • Lightweight multi-composite combination shell: uni-directional carbon composite with an aramid layer
  • Shell layers with an epoxy resin bonding for limited outer shell deflection so that the energy spreads wider and is better absorbed by the EPS liner
  • Four shell sizes
  • Multi-density EPS polymer liner four section construction that allows for specific densities of polymer to be prepared for different zones around the helmet lining
  • Patented A-Head fit system allows the M8 to be tuned exactly to the riders preference with a micro-adjustable pad that is connected to the inner shell
  • Patented visor release system ensures the peak detaches from the helmet if subjected to a significant impact while maintaining shell integrity
  • Base of the S-M8 has been sculpted for collarbone protection and includes an energy absorbing pad
  • MIPS incorporated to reduce rotation motion energy with a low-friction slip layer between the comfort liner and the multi-density polymer energy absorption shell
  • Emergency Release System cheek pads
  • Designed to allow a helmet eject inflation system to be fitted into the inside crown of the shell (sold separately)
  • Wide 26mm chin strap
  • Visor designed to direct air flow along with intake and exhaust vents
  • Hydration compatible
  • Removable and washable Coolmax liner
  • DOT and ECE certified
Product Style RevZilla Item # MFR. Product # Availability
Product Style White/Black/Grey / 2XL RevZilla Item #1566886 MFR. Product #8301519-2182-2X AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style White/Black/Grey / LG RevZilla Item #1566887 MFR. Product #8301519-2182-LG AvailabilityIn Stock: Ships within 24 hours
Product Style White/Black/Grey / MD RevZilla Item #1566888 MFR. Product #8301519-2182-MD AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style White/Black/Grey / SM RevZilla Item #1566889 MFR. Product #8301519-2182-SM AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style White/Black/Grey / XL RevZilla Item #1566890 MFR. Product #8301519-2182-XL AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style White/Black/Grey / XS RevZilla Item #1566891 MFR. Product #8301519-2182-XS AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style 2XL / Fluo Red/Black/Grey RevZilla Item #1566892 MFR. Product #8301519-3183-2X AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style LG / Fluo Red/Black/Grey RevZilla Item #1566893 MFR. Product #8301519-3183-LG AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style MD / Fluo Red/Black/Grey RevZilla Item #1566894 MFR. Product #8301519-3183-MD AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style SM / Fluo Red/Black/Grey RevZilla Item #1566895 MFR. Product #8301519-3183-SM AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style XL / Fluo Red/Black/Grey RevZilla Item #1566896 MFR. Product #8301519-3183-XL AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style XS / Fluo Red/Black/Grey RevZilla Item #1566897 MFR. Product #8301519-3183-XS AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style 2XL / Matte Black/Grey/Fluo Yellow RevZilla Item #1566874 MFR. Product #8301519-1305-2X AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style LG / Matte Black/Grey/Fluo Yellow RevZilla Item #1566875 MFR. Product #8301519-1305-LG AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style MD / Matte Black/Grey/Fluo Yellow RevZilla Item #1566876 MFR. Product #8301519-1305-MD AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style SM / Matte Black/Grey/Fluo Yellow RevZilla Item #1566877 MFR. Product #8301519-1305-SM AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style XL / Matte Black/Grey/Fluo Yellow RevZilla Item #1566878 MFR. Product #8301519-1305-XL AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style XS / Matte Black/Grey/Fluo Yellow RevZilla Item #1566879 MFR. Product #8301519-1305-XS AvailabilityAvailable: Requires 3-5 business days of lead time prior to shipment
Product Style 2XL / Matte Black/Grey/Teal RevZilla Item #1566880 MFR. Product #8301519-1306-2X AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style LG / Matte Black/Grey/Teal RevZilla Item #1566881 MFR. Product #8301519-1306-LG AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style MD / Matte Black/Grey/Teal RevZilla Item #1566882 MFR. Product #8301519-1306-MD AvailabilityAvailable: Requires 3-5 business days of lead time prior to shipment
Product Style SM / Matte Black/Grey/Teal RevZilla Item #1566883 MFR. Product #8301519-1306-SM AvailabilityOut of Stock
Product Style XL / Matte Black/Grey/Teal RevZilla Item #1566884 MFR. Product #8301519-1306-XL AvailabilityAvailable: Requires 1-3 business days of lead time prior to shipment
Product Style XS / Matte Black/Grey/Teal RevZilla Item #1566885 MFR. Product #8301519-1306-XS AvailabilityOut of Stock
Product Description
Part Numbers
0 Customer Reviews
2 Questions & 1 Answers

Related Video

How To Size and Buy a Motorcycle Helmet

Reviews & Questions

Leave a product review for a chance to win one of our monthly $100 giveaways.
Ask or answer a question to win one of our monthly $100 giveaways.