HJC RPHA 10 Speed Machine MC-5 Helmet K177779

  • HJC RPHA 10 Speed Machine MC-5 Helmet K177779

The RPHA series delivers on the promise of class-leading light weight through shared cutting-edge technologies that lead the way in the helmet industry. The RPHA feature HJCs Premium Integrated Matrix (PIM) construction, which incorporates four different materials - carbon fiber, aramid, fiberglass, and organic non-woven fabric (ultra high molecular polyethylene) - to create a unique woven blend that is both remarkably strong and lighter compared to conventional helmet materials. PIM construction results in a shell weight that is significantly lighter than competing designs for greater rider comfort. To create these modern, complex shell designs, HJC employed CAD design and rapid-prototyping technology, along with extensive testing of multiple prototypes within HJC's state-of-the-art wind tunnel. Net result: carefully controlled aerodynamic airflow around the helmet for a smooth and quiet riding experience along with superior, well-controlled flow-through ventilation for additional rider comfort.

Advanced P.I.M. Fiberglass:

  • Fiberglass composite shell made from a blend of carbon fiber, fiberglass, aramid and organic non-woven fabric

Max Airflow Top Vent:

  • Six-Stage variable airflow is adjusted by glove-friendly dials on each intake vent

ACS Advanced Channeling Ventilation System:

  • Full front-to-back airflow flushes heat and humidity out of the interior

SilverCool Plus™ Interior:

  • Soft, moisture-wicking and odor-free interior with ginkgo extract and advanced silver antibacterial fabric

Rapidfire™ II Shield Replacement System:

  • Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation
  • RPHA 10 Pro cheekpads are interchangeable throughout all shell sizes

Pinlock® Prepared HJ-20 Shield:

  • Optically superior Pinlock®-prepared 2D face shield provides 95% UV protection. Pinlock fog-resistant lens included
  • Innovative center one-touch open/close locking system is designed for an extremely secure seal
  • Pinlock® fog-resistant system included

Technical Information:

  • Standard: DOT-218, SNELL M2010
  • Reduced Weight: 3.31 lbs / 1,500 grams (approx, based on Size Medium Solid Color)
£408  £103Sale: £286Save: 30% off
  • Model: 8210Reel_2115
  • 999 Units in Stock



Customers who bought this product also purchased...

Alpinestars Rideout Stella Francie Textile Jacket
£200  £90Sale: £140Save: 30% off
Rev'It! Voltiac Textile Jacket V959461
£208  £91Sale: £145Save: 30% off
Icon Airframe Pro Deployed Camo Helmet
£297  £96Sale: £208Save: 30% off
Bell Vortex Manifest Helmet Hi-Viz
£134  £74Sale: £94Save: 30% off
Bell Star Carbon Union Helmet
£483  £110Sale: £338Save: 30% off
Dainese Brookland Gore-Tex Jacket
£557  £128Sale: £390Save: 30% off
HJC CS-R2 Contrast MC-5 Helmet
£74  £58Sale: £52Save: 30% off
LS2 Arrow Carbon Full Face Motorcycle Helmet
£327  £98Sale: £229Save: 30% off