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We're sorry but all Color/Size combinations for this product are currently out of stock. You can be notified upon their arrival by choosing the Color and Size options you are interested in and then entering your email in the yellow box below.
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Thor Youth Quadrant Rockstar Helmet 2012

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Thor Youth Quadrant Rockstar Helmet 2012

Quadrant Youth Helmets offer increased performance, reduced weight, and innovative styling. Designed to exceed both DOT and ECE 22.05 standards, the Quadrant helmet is loaded with features normally found only on more expensive helmets. The Quadrant offers comfort and performance in a lightweight package that’s got just the right balance and a great, secure fit. Next time you ride, don’t settle for anything less then the category leading Quadrant Helmet. . 2.9 LBS. (1300 GRAMS).


  • Dual density expanded polystyrene liner
  • Extensive venting
  • Molded roost guard
  • Plush removable liner

Thor Helmet Sizing

Size Inches CM
2XS 20-1/2 52-53
XS 20-7/8 - 21-1/4 53-54
SM 21-5/8 - 22 55-56
MD 22-3/8 - 22-3/8 57-58
LG 22-3/4 - 23-1/8 59-60
XL 23-1/2 - 24 61-62
2XL 24-3/4 - 25-1/8 63-64

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

Click here to see the full Thor Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Rockstar / SM 787243 01110775 Out of Stock
Rockstar / MD 787244 01110776 Out of Stock
Rockstar / LG 787245 01110777 Out of Stock
Rockstar / XL 787246 01110778 Out of Stock


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