HJC : RPHA ST Knuckle Helmets 2016

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Retail Price:
$399.99 - 404.99
MX South Price:
$149.99 - 399.99
Part Number:
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Advanced P.I.M. (Premium Integrated Matrix) Construction
  • Fiberglass composite shell made from a blend of carbon fiber, fiberglass, aramid and organic non-woven fabric.
  • Integrated SunShield: Smoke tinted SunShield deploys quickly and easily.
Max Air-Flow Top Vent
  • Variable air flow is adjusted by glove-friendly intake vent.
SilverCool Plus™ (Ginkgo) Interior
  • Moisture-wicking and odor-free interior with advanced silver and anti-bacterial fabric.
  • Crown and cheek pads are removable and washable.
RapidFire II™ Shield Replacement System
  • Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation.
Pinlock® Prepared HJ-20ST Anti-Scratch Shield
  • Optically superior Pinlock®-prepared 2D face shield provides 95% UV protection.
  • Innovative center one-touch open/close locking system is designed for an extremely secure seal.
  • 5mm initial shield position by releasing shield lock system.
  • Includes Pinlock® 100% Max Vision anti-fog insert.
HJ-L1 SunShield Visor System
  • One-touch integrated smoke-tinted anti-scratch SunShield deploys and retracts quickly and easily.
Eye Glasses and Sun Glasses Friendly EPS Shape

* With tape measure level, measure the widest point of your head, approximately 1" above your eyebrows.

Helmet Size Hat Size Inch Centimeter
XS 6 3/4 - 6 7/8 21 1/4 - 21 5/8 54 - 55
S 6 7/8 - 7 21 5/8 - 22 55 - 56
M 7 1/8 - 7 1/4 22 1/2 - 22 7/8 57 - 58
L 7 1/4 - 7 3/8 22 7/8 - 23 1/4 58 - 59
XL 7 1/2 - 7 5/8 23 5/8 - 24 60 - 61
2XL 7 3/4 - 7 7/8 24 3/8 - 24 3/4 62 - 63