Discontinued Product!

The Thor Quadrant Solid Color Helmet
has been discontinued and will not be returning
Replacement Suggestion:
Thor Helmets
Out of Stock
Thor Quadrant Solid Color Helmet

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Thor Quadrant Solid Color Helmet

The Quadrant Helmet offers increased performance, reduced weight, and innovative styling. Designed to exceed both DOT and ECE 22.05 standards, the Quadrant is truly a world-class helmet loaded with features normally found only on more expensive helmets. Featuring a dual-density expanded polystyrene liner, extensive venting, molded roost guard and a plush removable liner, the Quadrant offers comfort and performance in a lightweight package that’s got just the right balance and a great, secure fi t. Next time you ride, don’t settle for anything less then the category leading Quadrant Helmet.


  • Blended Acrylonitrile Butadiene Styrene and Polycarbonate shell provides maximum coverage without excess weight
  • Molded roost guard for added protection
  • Oversized forehead venting
  • Direct flow mouth guard with mesh filter
  • Dual-density expanded polystyrene liner
  • Plush removable/washable comfort liner
  • Molded rear goggle strap holder
  • DOT and ECE 22.05
  • Approximately 3.2 LBS. (1450 GRAMS)
Bang For The Buck
5 / 5
Protection & Durability
4.5 / 5
5 / 5
4.5 / 5
5 / 5
Air Flow
4 / 5
Noise Level

Thor Helmet Sizing

Size Head (cm)
2XS 52-53
XS 53-54
SM 55-56
MD 57-58
LG 59-60
XL 61-62
2XL 63-64

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

H Head Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Style RevZilla Item # Manufacturer Product # Availability
Matte Black / XS 509833 01102109 Out of Stock
Matte Black / SM 509834 01102110 Out of Stock
Matte Black / MD 509835 01102111 Out of Stock
Matte Black / LG 509836 01102112 Out of Stock
Matte Black / XL 509837 01102113 Out of Stock
Matte Black / 2XL 509838 01102114 Out of Stock


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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Why did you choose this?
RevZilla Store
Solid black, no distracting logos or graphics.
Jim N on Nov 18, 2015
Solid black, no distracting logos or graphics.
Jim N on Nov 18, 2015