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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 Force Pro Circuit Helmet
  • Thor Force Pro Circuit Helmet - Black/Green
  • Thor Force Pro Circuit Helmet - Black/Green
  • Thor Force Pro Circuit Helmet - Black/Green

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This is the helmet that Team Pro Circuit riders wear when they go to the line. Every detail has been carefully executed to ensure you get the full factory look and performance that only the Force helmet can offer. Unrivaled style and championship proven performance all in one helmet, the Pro Circuit Force.


  • Meets all AMA/FIM professional racing standards
  • Hand-laid composite Fiberglass / Dyneema / Kevlar construction for superior strength with minimal weight
  • Contoured eyeport gasket improves goggle fit
  • Increased liner and EPS ventilation for maximum airflow
  • Front intake port and rear exhaust vents provide optimal air circulation and venting
  • EPS material extends throughout chinbar for increased strength
  • Antibacterial, moisture-wicking SilverCool™ liner is removable/washable and keeps you cool ride after ride
  • Integrated hi-flow mouthpiece increases airflow while filtering out roost
  • Integrated roost guard for added protection
  • DOT and ECE 22.05 approved
  • Approximately 3.1 LBS. (1407 GRAMS)

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
Black/Green / XS 838590 01103193 Out of Stock
Black/Green / SM 838589 01103194 Out of Stock
Black/Green / MD 836988 01103195 Out of Stock
Black/Green / LG 836987 01103196 Out of Stock
Black/Green / XL 836986 01103197 Out of Stock
Black/Green / 2XL 838588 01103198 Out of Stock


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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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.

See our full Return Policy for all of the pertinent details.

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Thor Force Pro Circuit Helmet
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