Skip to main content
MCAS logo
0
MCAS logo
0

My Cart $0.00

Need help?

(02) 8039 1872

  • Dirt

    Helmets

      • Motocross
      • Adventure
      • Youth
      • Visors & Helmet Accessories

    Jersey

      • Unisex
      • Women's
      • Youth

    Pants

      • Unisex
      • Women's
      • Youth

    Boots

      • Unisex
      • Women's
      • Youth

    Body Armour

      • Armoured Jackets & Vests
      • Base Layers
      • Elbow Guards
      • Kidney Belts
      • Knee Braces & Guards
      • Neck Braces
      • Shoulder Braces

    Gloves

      • Unisex
      • Women's
      • Youth

    Goggles

      • Adults
      • Youth
      • Cases
      • Lenses & Accessories

    Socks

      • Unisex
      • Women's
      • Youth

    Kits

    Gift Vouchers

    Alpinestars 2024 Fluid Graphite Pants - Black/Dark Grey

    Alpinestars 2024 Fluid Graphite Pants - Black/Dark Grey

    RRP $109.24 Now from $62.86

    28
    30
    32
    34
    36
    38
    40
    42
    44
  • Road

    Helmets

      • Full Face
      • Modular
      • Open Face
      • Accessories & Visors

    Jackets & Vests

      • Unisex
      • Women's

    Gloves

      • Unisex
      • Women's

    Boots

      • Unisex
      • Women's

    Rain Gear

      • Rain Suits
      • Rain Jackets
      • Rain Pants
      • Rain Boots

    Pants

      • Unisex
      • Women's

    Body Armour

      • Back Protectors
      • Shoulder/Elbow/Knee Armour

    Base Layer

      • Base Layers
      • Face Masks

    Goggles

    Racing Suits

    Gift Vouchers

    Oneal Volt Solid Helmet - White

    Oneal Volt Solid Helmet - White

    RRP $142.45 From $142.45

    XS
    S
    M
    L
    XL
    2XL
  • Bicycle

    Azonic

      • AZP12
      • AZP16
      • AZF16
      • AZF20
      • AZF16RYM
      • AZF20RYM

    Sherco

      • EB16
      • EB12 Factory
      • EB16 Factory
      • EB18 Factory
      • EB20 Factory

    Stacyc

      • Stacyc 12E
      • Stacyc 16E
      • Stacyc 16HD
      • Stacyc 18E
      • Stacyc 20E
      • Stacyc Accessories

    Sur-ron

      • Light Bee X
      • 2025 Light Bee X
      • 2025 Hyper Bee

    Cycleboard

      • Rovers
      • Golf
      • Parts & Accessories

    Helmets

      • BMX
      • MTB
      • Road & Gravel
      • Helmet Accessories

    Clothing

      • Jerseys
      • Pants
      • Shorts
      • Gloves
      • Socks
      • Casual Wear
    Bell Zephyr Pad Kit - Black

    Bell Zephyr Pad Kit - Black

    From $28.46

    S
    L
  • Parts

    Body

      • Clamps & Mounts
      • Crash Protection
      • Engine & Ignition Covers
      • Fender Eliminators
      • Mirrors
      • Nuts & Bolts
      • Plastics
      • Pickup Knobs
      • Traction Pads
      • Windshields

    Electrical & Lighting

      • Battery
      • Head & Taillights
      • Horns
      • Power Supplies
      • Spark Plugs
      • Indicators
      • Bulbs

    Oil & Chemicals

      • 2-Stroke Oil
      • Additives
      • Air Filter & Cleaner
      • Brake Fluid
      • Chain Lubricants
      • Coolant & Antifreeze
      • Engine Oil
      • Grease
      • Suspension Fluid
      • Transmission & Gear Oil

    Handlebars & Controls

      • Bar Ends
      • Bar Pads
      • Grips & Accessories
      • Handguards & Accessories
      • Handlebars
      • Handlebar Clamps & Risers
      • Levers
      • Throttle Cables
      • Throttle Kits and Tubes

    Exhaust

      • 2 Stroke Exhausts
      • 4 Stroke Exhausts
      • Exhaust Accessories

    Brake

      • Brake Pads
      • Brake Rotors
      • Brake Accessories

    Tyres

      • Dual Purpose
      • Off Road
      • Road
      • Tubes & Inserts
      • Tyre Repair

    Wheels

      • Rim Locks
      • Spokes
      • Training Wheels
      • Wheels & Wheelset

    Drive

      • Chains
      • Sprockets
      • Chain & Sprocket Kits

    Engine

      • Clutch Kits
      • Fuel Management

    Filters

      • Air Filters
      • Oil Filters

    Suspension

      • Fork & Shock Components
      • Fork Seals

    Bearings

    Graphics & Decals

    Gift Vouchers

    H7 BULB 12V/55W PX26D BX10

    H7 BULB 12V/55W PX26D BX10

    RRP $5.03 $5.03

  • Accessories

    Tools

      • Brake Tools
      • Carb & Fuel Tools
      • Hand Tools
      • Drive Tools
      • Engine Tools
      • Drain Pans, Funnels & Measuring Jugs
      • Safety Wire
      • Manuals
      • Shop Tools
      • Spark Plug Tools
      • Suspension Tools
      • Tyre and Wheels Tools
      • Tool Boxes & Bags

    Luggage & Bags

      • Backpacks
      • Hydration
      • Tail Bags
      • Tank Bags & Covers
      • Saddlebags & Panniers
      • Luggage Racks
      • Luggage Accessories
      • Gear Bags
      • Thigh Bags

    Security

      • Alarms
      • Anchors
      • Cable Locks
      • Chain Locks
      • Disc Locks

    Transport

      • Buckle Tie Downs
      • Bungee Cords & Nets
      • Fuel Jugs
      • Motorcycle Carriers
      • Ramps
      • Wheel Chocks

    Communications

      • Bluetooth Comms
      • Adaptors & Cords
      • Phone & GPS Accessories

    Navigation

      • GPS
      • Accessories & Mounts

    Cleaning

      • Cleaning Products
      • Cleaning Tools

    Covers

    Stands & Lifts

    Toys Models

    Gift Vouchers

    Rjays Lined Motorcycle Cover

    Rjays Lined Motorcycle Cover

    RRP $56.95 From $56.95

    BC6
    BC5
    BC10
    BC4
  • Vouchers
  • Lifestyle

    Mens

      • Belts
      • Hoodies
      • Hats
      • Socks
      • T-Shirts
      • Shorts

    Womens

      • Belts
      • Hoodies
      • Hats
      • Socks
      • Pants
      • Shirts

    Youth

      • Hats
      • Hoodies
      • Socks
      • Shorts
      • Shirts

    Accessories

      • Keyrings
      • Sunglasses
      • Toy Models
      • Water Bottles

    Footwear

    100% Icon Tee - Navy Heather

    100% Icon Tee - Navy Heather

    RRP $33.20 Now from $15.25

    S
    M
    L
    2XL
  • New In
  • Clearance
  • Store Locations
  • Brands
    • SHARK
    • Oneal
    • Arai
    • Givi
    • 100%
    • Renthal
    • Rjays
    • Alpinestars
    • Fox
    • Bel-Ray
    • DID
    • Ixon
    • UFO
    • Gaerne
    • Xtech
    • View all brands
  • Dirt
    • Helmets
      • Motocross
      • Adventure
      • Youth
      • Visors & Helmet Accessories
    • Jersey
      • Unisex
      • Women's
      • Youth
    • Pants
      • Unisex
      • Women's
      • Youth
    • Boots
      • Unisex
      • Women's
      • Youth
    • Body Armour
      • Armoured Jackets & Vests
      • Base Layers
      • Elbow Guards
      • Kidney Belts
      • Knee Braces & Guards
      • Neck Braces
      • Shoulder Braces
    • Gloves
      • Unisex
      • Women's
      • Youth
    • Goggles
      • Adults
      • Youth
      • Cases
      • Lenses & Accessories
    • Socks
      • Unisex
      • Women's
      • Youth
    • Kits
    • Gift Vouchers
  • Road
    • Helmets
      • Full Face
      • Modular
      • Open Face
      • Accessories & Visors
    • Jackets & Vests
      • Unisex
      • Women's
    • Gloves
      • Unisex
      • Women's
    • Boots
      • Unisex
      • Women's
    • Rain Gear
      • Rain Suits
      • Rain Jackets
      • Rain Pants
      • Rain Boots
    • Pants
      • Unisex
      • Women's
    • Body Armour
      • Back Protectors
      • Shoulder/Elbow/Knee Armour
    • Base Layer
      • Base Layers
      • Face Masks
    • Goggles
    • Racing Suits
    • Gift Vouchers
  • Bicycle
    • Azonic
      • AZP12
      • AZP16
      • AZF16
      • AZF20
      • AZF16RYM
      • AZF20RYM
    • Sherco
      • EB16
      • EB12 Factory
      • EB16 Factory
      • EB18 Factory
      • EB20 Factory
    • Stacyc
      • Stacyc 12E
      • Stacyc 16E
      • Stacyc 16HD
      • Stacyc 18E
      • Stacyc 20E
      • Stacyc Accessories
    • Sur-ron
      • Light Bee X
      • 2025 Light Bee X
      • 2025 Hyper Bee
    • Cycleboard
      • Rovers
      • Golf
      • Parts & Accessories
    • Helmets
      • BMX
      • MTB
      • Road & Gravel
      • Helmet Accessories
    • Clothing
      • Jerseys
      • Pants
      • Shorts
      • Gloves
      • Socks
      • Casual Wear
  • Parts
    • Body
      • Clamps & Mounts
      • Crash Protection
      • Engine & Ignition Covers
      • Fender Eliminators
      • Mirrors
      • Nuts & Bolts
      • Plastics
      • Pickup Knobs
      • Traction Pads
      • Windshields
    • Electrical & Lighting
      • Battery
      • Head & Taillights
      • Horns
      • Power Supplies
      • Spark Plugs
      • Indicators
      • Bulbs
    • Oil & Chemicals
      • 2-Stroke Oil
      • Additives
      • Air Filter & Cleaner
      • Brake Fluid
      • Chain Lubricants
      • Coolant & Antifreeze
      • Engine Oil
      • Grease
      • Suspension Fluid
      • Transmission & Gear Oil
    • Handlebars & Controls
      • Bar Ends
      • Bar Pads
      • Grips & Accessories
      • Handguards & Accessories
      • Handlebars
      • Handlebar Clamps & Risers
      • Levers
      • Throttle Cables
      • Throttle Kits and Tubes
    • Exhaust
      • 2 Stroke Exhausts
      • 4 Stroke Exhausts
      • Exhaust Accessories
    • Brake
      • Brake Pads
      • Brake Rotors
      • Brake Accessories
    • Tyres
      • Dual Purpose
      • Off Road
      • Road
      • Tubes & Inserts
      • Tyre Repair
    • Wheels
      • Rim Locks
      • Spokes
      • Training Wheels
      • Wheels & Wheelset
    • Drive
      • Chains
      • Sprockets
      • Chain & Sprocket Kits
    • Engine
      • Clutch Kits
      • Fuel Management
    • Filters
      • Air Filters
      • Oil Filters
    • Suspension
      • Fork & Shock Components
      • Fork Seals
    • Bearings
    • Graphics & Decals
    • Gift Vouchers
  • Accessories
    • Tools
      • Brake Tools
      • Carb & Fuel Tools
      • Hand Tools
      • Drive Tools
      • Engine Tools
      • Drain Pans, Funnels & Measuring Jugs
      • Safety Wire
      • Manuals
      • Shop Tools
      • Spark Plug Tools
      • Suspension Tools
      • Tyre and Wheels Tools
      • Tool Boxes & Bags
    • Luggage & Bags
      • Backpacks
      • Hydration
      • Tail Bags
      • Tank Bags & Covers
      • Saddlebags & Panniers
      • Luggage Racks
      • Luggage Accessories
      • Gear Bags
      • Thigh Bags
    • Security
      • Alarms
      • Anchors
      • Cable Locks
      • Chain Locks
      • Disc Locks
    • Transport
      • Buckle Tie Downs
      • Bungee Cords & Nets
      • Fuel Jugs
      • Motorcycle Carriers
      • Ramps
      • Wheel Chocks
    • Communications
      • Bluetooth Comms
      • Adaptors & Cords
      • Phone & GPS Accessories
    • Navigation
      • GPS
      • Accessories & Mounts
    • Cleaning
      • Cleaning Products
      • Cleaning Tools
    • Covers
    • Stands & Lifts
    • Toys Models
    • Gift Vouchers
  • Lifestyle
    • Mens
      • Belts
      • Hoodies
      • Hats
      • Socks
      • T-Shirts
      • Shorts
    • Womens
      • Belts
      • Hoodies
      • Hats
      • Socks
      • Pants
      • Shirts
    • Youth
      • Hats
      • Hoodies
      • Socks
      • Shorts
      • Shirts
    • Accessories
      • Keyrings
      • Sunglasses
      • Toy Models
      • Water Bottles
    • Footwear
  • New In
  • Clearance
  • Store Locations
  • Brands
    • SHARK
    • Oneal
    • Arai
    • Givi
    • 100%
    • Renthal
    • Rjays
    • Alpinestars
    • Fox
    • Bel-Ray
    • DID
    • Ixon
    • UFO
    • Gaerne
    • Xtech
    • View all brands

BetaSearch Your Bike

  1. Home
  2. All Products
  3. Motorcycle Gear Clearance
  4. Alpinestars Supertech M8 Radium 2 Helmet - Red/White
Product main image

Description


Alpinestars Supertech M8 Radium 2 Helmet - Red/White

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.

Please Note: The images shown are for display use only and may not accurately depict the actual product. Differences in color, design, or features may occur.

(AS8301423301262-p , AS8301423301256)

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 sizing 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.
  • 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%.

Specifications


Construction

  • The helmet’s shell construction utilizes a highly advanced molding technology with a multi-composite combination:
  • 3K 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.
Brand Alpinestars
Category
  • Motorcycle Gear Clearance
  • Motorcycle Gear Clearance
  • Motorcycle Gear Clearance
SKU AS8301423301262-p
Barcode # 8059347046525

Alpinestars SM8 Radium 2 Helmet - Bright Red/White - S

SKU: AS8301423301256

In Stock
Sale ends in   (11:59 PM, 20 Apr 2026)
RRP $749.99
WAS $712.49
NOW $507.69
SAVE 32%!

Size
S

  • Afterpay
  • MasterCard
  • Visa
  • Web Payments
  • Web Payments
  • zipPay
  • American Express
  • PayPal Checkout
Warehouse In-Stock

NSW

MCAS Alexandria Out of Stock

(02) 9261 5182

MCAS Auburn Out of Stock

(02) 9648 1400

MCAS Campbelltown Out of Stock

(02) 4625 7700

MCAS Caringbah Out of Stock

(02) 9574 5100

MCAS Gregory Hills Call Store

(02) 4625 7518

MCAS Penrith Out of Stock

(02) 4737 6100

QLD

MCAS-Gold Coast Out of Stock

(07) 56551407

MCAS-Springwood Out of Stock

(07) 31931688

VIC

MCAS Dandenong Out of Stock

(03) 9792 9788

MCAS Epping Out of Stock

(03) 9336 2233

Notify me when back in stock

Please tick this box to proceed.

Related products

Leatt Moto 3.5 Red Helmet

Leatt Moto 3.5 Red Helmet

RRP $332.46 Now from $99.95

L
XL
2XL
Leatt Youths Moto 3.5 Black Red Helmet

Leatt Youths Moto 3.5 Black Red Helmet

RRP $284.95 Now from $99.95

M
L
Bell Moto-9S Flex Sprint Helmet - White/Red

Bell Moto-9S Flex Sprint Helmet - White/Red

RRP $759.96 Now from $479.97

S
M
L
Renthal Ultralight Grooved Sprocket - Rear - Black - 51T

Renthal Ultralight Grooved Sprocket - Rear - Black - 51T

RRP $113.96 $113.96

Bell MX-9 MIPS Disrupt Helmet - Matte Black/Red

Bell MX-9 MIPS Disrupt Helmet - Matte Black/Red

RRP $265.95 Now from $139.95

S
M
L
XL

More From This Category

Bs Battery Btx7L Fa

Bs Battery Btx7L Fa

RRP $85.45 $85.45

Fox Deluxe Toolpack - Camo - Black Camo - OS

Fox Deluxe Toolpack - Camo - Black Camo - OS

RRP $75.99 $75.99

Zeta Pivot Clutch Lever for YZ/YZF <'08, KX250F/450 >'18, KX125 '06< KX0250 '05< (3 Finger, CNC, M)

Zeta Pivot Clutch Lever for YZ/YZF <'08, KX250F/450 >'18, KX125 '06< KX0250 '05< (3 Finger, CNC, M)

$99.99

Ferodo Clutch Kit With Friction And Steel Plates : Fcs0272/2

Ferodo Clutch Kit With Friction And Steel Plates : Fcs0272/2

RRP $109.20 $109.20

Rk Rear Sprocket - Steel Lightweight Self Cleaning - 50T 520P

Rk Rear Sprocket - Steel Lightweight Self Cleaning - 50T 520P

RRP $65.46 $65.46

Australian Owned

Australian Owned

Same Day Dispatch*

Same Day Dispatch*

Hassle Free Returns

Hassle Free Returns

Expert Support

Expert Support

MCAS VIP

Receive great info, special offers, updates on some of our newest products & exclusive sales to your inbox.

  • Service

  • My Account
  • Track Order
  • Resolution Centre
  • About Us

  • About Us
  • Store Locations
  • Contact Us
  • Terms & Conditions

  • Shipping
  • Privacy Policy
  • Returns Policy
  • Security Policy
  • Afterpay
  • MasterCard
  • Visa
  • Web Payments
  • Web Payments
  • zipPay
  • American Express
  • PayPal Checkout

© 2026 MCAS. ABN: 51 001 291 096. All rights reserved.

MCAS Footer Logo
  • (02) 8039 1872
  • online@support.mcas.com.au
  • Facebook
  • Instagram

Terms & Conditions

Welcome to our website. If you continue to browse and use this website, you are agreeing to comply with and be bound by the following terms and conditions of use, which together with our privacy policy govern MCAS’s relationship with you in relation to this website. If you disagree with any part of these terms and conditions, please do not use our website.

The term ‘MCAS’ or ‘us’ or ‘we’ refers to the owner of the website whose registered office is 68 Moss St, SLACKS CREEK, QLD, 4127, AU. Our ABN is 51 001 291 096. The term ‘you’ refers to the user or viewer of our website.

The use of this website is subject to the following terms of use:

  • The content of the pages of this website is for your general information and use only. It is subject to change without notice.
  • Neither we nor any third parties provide any warranty or guarantee as to the accuracy, timeliness, performance, completeness or suitability of the information and materials found or offered on this website for any particular purpose. You acknowledge that such information and materials may contain inaccuracies or errors and we expressly exclude liability for any such inaccuracies or errors to the fullest extent permitted by law.
  • Your use of any information or materials on this website is entirely at your own risk, for which we shall not be liable. It shall be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.
  • This website contains material which is owned by or licensed to us. This material includes, but is not limited to, the design, layout, look, appearance and graphics. Reproduction is prohibited other than in accordance with the copyright notice, which forms part of these terms and conditions.
  • All trademarks reproduced in this website, which are not the property of, or licensed to the operator, are acknowledged on the website.
  • Unauthorised use of this website may give rise to a claim for damages and/or be a criminal offence.
  • From time to time, this website may also include links to other websites. These links are provided for your convenience to provide further information. They do not signify that we endorse the website(s). We have no responsibility for the content of the linked website(s).
  • Your use of this website and any dispute arising out of such use of the website is subject to the laws of Australia.

Privacy Policy

You consent to the collection, holding, use and disclosure of your personal information in accordance with our Privacy Policy 

Alpinestars Sizing Guide

EASTER TRADING HOURS
1776693540 - 1776082648 = 610892 / 2026-04-20 23:59:00