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Arai Quantum ST Motorcycle Helmet Fluorescent Yellow

Arai Helmets



Please note this product is not available to buy using our online service. Alternatively you can phone us on 01205 356 767 to make an enquiry about this product.


This Arai Quantum ST Motorcycle Helmet in Fluorescent Yellow is the latest hand made sports touring helmet from the Japanese factory. The Quantum ST is the latest in a whole generation of Arai Quantum Helmets with its origins going back to the iconic Arai Quantum E, the bench mark for others to copy and follow. The Arai Quantum St hosts an entirely new shell and features which are identical to those fitted in the Arai RX7 GP for improved comfort, fit and protection. As Arai say ‘there is a difference.’

The Arai Quantum ST is equally at home on the track as it is on the road boasting a SAI Pinlock anti fog wide vision visor and the latest Arai Cool Max Emergency tab Cheek pads using F.C.S., Facial Contour System.

Benefits and Features of this Arai Quantum ST Motorcycle Helmet includes;

  • Both ECE 22-05 and Snell M2010 approved .
  • Super Complex Laminate Construction
  • Fluorescent Yellow finish
  • Enhanced hyper ridge strengthening in lower section.
  • Larger opening for increased ease when taking helmet on or off.
  • Triple density singular formed inner shell.
  • Quick release L.R.S., Lever Retention System, Visor; no tools required
  • Air intake stabiliser diffuser, increases airflow through the helmet.
  • Airflow spoiler directs the airflow around the bottom edge.
  • Free Flow System (FFS) reduces draft and wind noise.
  • Emergency release cheek pads.
  • Singularly formed base trim, improvement over all previous models
  • Fully washable and removable Dry Cool® interior.
  • Removable skull cap and cheek pads.
  • Removable neck roll.
  • Pinlock ready, clear visor.
  • Double ‘D’ ring fastening system.
  • Free 5 year Arai warranty and servicing.

Arai Quantum ST Motorcycle Helmet Size Chart

Please note that the Black Visor fitted is for illustration purposes. All Arai helmets are supplied with a standard clear visor.