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Alpinestars Supertech M10 Helmet vs 6D ATR-3 Helmet

Both are premium motocross helmets with rotational-impact protection and ECE 22.06 certification, but they solve the problem differently. The Alpinestars Supertech M10 is the lighter, more ventilated choice at about 1260 g with 28 ports, and it carries MIPS plus an integrated eject system. The 6D ATR-3 uses ODS suspension with a rebuildable, multi-impact liner and a magnetic buckle, and it meets the tougher FIM 02 standard. Buy the Alpinestars for weight and airflow; buy the 6D for rebuildability and the broadest certification.

  • Choose the Alpinestars Supertech M10 if you want the lightest, best-ventilated shell in this pair and a conventional MIPS liner with a double-D strap.
  • Choose the 6D ATR-3 if you want a rebuildable helmet with ODS suspension, a magnetic buckle and FIM 02 certification.

Prices

  • Alpinestars Supertech M10 Helmet: $749.95 at Amazon (checked today)
  • 6D ATR-3 Helmet: $675.71 at Amazon (last seen Nov 8)
  • Difference: the 6D ATR-3 Helmet is $74.24 cheaper than the Alpinestars Supertech M10 Helmet at the latest prices (Nov 8 and Nov 9)
Alpinestars
Supertech M10 Solid Helmet

Alpinestars Supertech M10 Helmet

Supertech M10 Solid Helmet

4.9(218 ratings)
$749.95at AmazonObserved at 1:41 AM
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Pros
  • Lightest in this pair at about 1260 g
  • 28 vents give strong airflow
  • MIPS plus integrated eject removal
  • Four shell sizes for a closer fit
  • A-Head system adjusts angle and height
Cons
  • Not rebuildable after a hard crash
  • Double-D strap is slower to fasten
  • No FIM 02 certification
6D
6D ATR-3

6D ATR-3 Helmet

6D ATR-3

$675.71at AmazonObserved at 11:11 PM
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Pros
  • ODS suspension handles angular and multi-impact loads
  • Rebuildable design extends service life
  • FIM 02 and ECE 22.06 certified
  • Magnetic buckle is quick to use
  • Emergency cheek-pad release
Cons
  • Heavier at about 1350 g
  • Fewer ventilation ports than the Alpinestars
  • Magnetic clasp needs a clean seat to hold

What separates them

Alpinestars Supertech M10 Helmet6D ATR-3 Helmet
Rotational protectionMIPS low-friction linerOmni-Directional Suspension (ODS) with elastomer dampers
Weight (size M)About 1260 gAbout 1350 g
CertificationECE 22.06DOT, ECE 22.06, ACU and FIM 02
Ventilation28 ports (18 intake, 10 exhaust)Large intake vents, fewer ports listed
Chin strapDouble-D ringMagnetic clasp
RebuildabilityNot a rebuildable designRebuildable after a crash
Emergency removalIntegrated eject system plus ERS visor releaseEmergency release cheek pads
Fit adjustmentA-Head angle and height adjustment, 4 shell sizesInterchangeable cheek pads, intermediate oval shape

Price history

$749.95$675.71
Nov 6Nov 9
  • Alpinestars Supertech M10 Helmet: lowest $749.95 on Nov 9 at Alpinestars.
  • 6D ATR-3 Helmet: lowest $675.71 on Nov 6 at 6D Helmets; $675.71 on Nov 9.

Prices at every store

Alpinestars Supertech M10 Helmet

  • Cycle GearNew

    In stock

    $749.95Free shippingObserved at 1:41 AM
    Visit Cycle Gear
  • RevZilla.comNew

    In stock

    $749.95Free shippingObserved at 1:41 AM
    Visit RevZilla.com
  • AlpinestarsNew

    In stock

    $749.95+ $9.99 shippingObserved at 1:41 AM
    Visit Alpinestars
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $749.95Free shippingObserved at 1:41 AM
    Visit Amazon

Also available at

  • AlpinestarsCheck price at Alpinestars
All 14 stores and price history →

6D ATR-3 Helmet

  • 6D HelmetsNew

    In stock

    $859.00Free shippingObserved at 11:12 PM
    Visit 6D Helmets
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $675.71Free shippingObserved at 11:11 PM
    Visit Amazon
  • eBayNew

    Availability unknownSold by mck_motosports (99.3% positive, 889 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $700.00Free shippingObserved at 11:11 PM
    Visit eBay
  • Xtreme HelmetsNew

    Availability unknown

    $819.95Observed at 11:12 PM
    Visit Xtreme Helmets

Also available at

  • eBayCheck price at eBay

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All 12 stores and price history →

Specs compared

SpecAlpinestars Supertech M10 Helmet6D ATR-3 Helmet
Weight1260 g—
Ventilation ports28 ports (18 intake, 10 exhaust)—
Shell construction3K carbon/uni-directional carbon/aramid—
EPS density4-density EPS—
CertificationECE 22.06—
Rotational protectionMIPS—
Fit systemA-Head Fitment System—
Emergency removalIntegrated eject helmet removal technology—
Visor releaseERS Emergency Visor Release—
Chin strapDouble-D—
Shell sizes4—
InteriorFully Removable—
Show all 36 specsShow fewer specs
SpecAlpinestars Supertech M10 Helmet6D ATR-3 Helmet
Safety Standards—DOT, ACU certification standards, ECE 22-06, FI…
Head Circumference—22.75 in
Impact Resistance—Multi-impact EPP outer liner
Impact Protection Technology—Omni-Directional Suspension (ODS)
Helmet Size—Medium, Large, Small, X-Large, XX-Large
Head Shape—Intermediate Oval
Adjustment System—Smaller/bigger cheek pads (to help with fit)
Shell Material—3K Carbon Composite Shell
Construction Type—

What reviewers say

Alpinestars Supertech M10 Helmet

  • 4.9 / 5218 ratings

Owners rate it very highly, with 218 ratings averaging 4.9 out of 5. Riders praise the low weight, the airflow and the secure fit, and several mention the collarbone-friendly chin bar. Complaints are few and mostly about the price and the fiddly Double-D strap.

What people mention
  • WeightPraisedRiders say it feels light on the head and reduces neck fatigue over a long ride.
  • VentilationPraisedOwners report strong airflow from the 28 ports, even at low speeds.
  • FitPraisedThe A-Head system and four shell sizes give a close, adjustable fit.
  • Safety featuresPraisedBuyers value MIPS, the eject system and the collarbone-clearance chin bar.

6D ATR-3 Helmet

Owners of the ATR series generally rate the ODS suspension and light carbon shell highly and call the ATR-3 a comfortable, well-ventilated dirt helmet. Common complaints center on price and on the magnetic clasp, which some riders find fussy compared with a D-ring.

What people mention
  • Impact protectionPraisedRiders credit the ODS system with soaking up hard, angular hits better than a conventional single-density liner.
  • WeightPraisedAt about 1,350 g in M/L, owners say it feels light on long rides.
  • VentilationPraisedThe large intake vents move good air in slow off-road riding.
  • Chinstrap claspMixedSome riders like the magnetic clasp; others find it slower to fasten than a D-ring.

Questions and answers

Which is better for hot, slow track days?
The Alpinestars. Its 28 ports and lighter shell move more air and tire your neck less when you are not getting much wind.
Which lasts longer?
The 6D ATR-3, because it is rebuildable. You can replace the ODS and liner parts after a crash instead of retiring the whole helmet.
Is the 6D worth stepping up to over the Alpinestars?
If you crash often or ride where FIM 02 matters, yes. If weight and airflow matter more, the Alpinestars is the better fit.
Which is safer?
Both are ECE 22.06. The 6D adds FIM 02 and ODS, which is designed for multi-impact and angular loads; the Alpinestars uses MIPS for rotation.
Which fits a rounder head?
The 6D uses an intermediate oval shape with swappable cheek pads. The Alpinestars A-Head system adjusts angle and height, so try both if you are between shapes.
Can I use either for downhill mountain biking?
Both are motorcycle helmets built to ECE 22.06, so they are heavier than most bike helmets. The Alpinestars at about 1260 g is the easier one to pedal in.

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Buying guides that pick them

  • Best motocross helmets
Rebuildable design
Removable Liner—Yes
Closure Type—Magnetic chinstrap clasp
Liner Material—Antibacterial comfort liner
Padding Type—Cheek pads
Helmet Weight—+/- 1350 g (size M/L)
Emergency Release System—Emergency release cheek pads
Liner Removability—Yes
Liner Washability—Yes
Helmet Color—Gloss White, Gloss Black Carbon, Matte Black Ca…
Visor Type—Mud Visor Extension included, Recessed shear-aw…
Goggle Compatibility—Fits a wide range of goggles well
Helmet Finish—Matte, Gloss
Helmet Graphics—Solid
Helmet Brim—Recessed shear-away visor screws, Mud Visor Ext…
Number Of Vents—Large intake vents