You value independence. You’re self-defining. What you believe in is Yours and Yours alone. For riders looking to establish their own identity. The Defiant-X is Your self-defining helmet. Arai is the only company offering multiple interior-fit shapes to better address the infinite variety of riders’ head shapes and sizes.
No one pays more attention to the subtle variations and infinite possibilities of the human head shape than Arai. Why? Because it’s the secret to getting the best comfort and fit.So for more than three decades, Arai has pioneered different shapes – and even different proportions within those shapes – in our various helmet models, working to offer a better fit for more people. The Quantum-X has Arai’s INTERMEDIATE OVAL (IO) interior fit shape.*
*A Helmet needs to be tried on in order to determine a proper fit.
Quantum-X Specs and Features
VAS SHIELD SYSTEM
IMPROVED SHIELD LATCH
IMPROVED GLANCE OFF ABILITY
MOUTH VENT AND EYE-PORT VENTILATION
DUAL FUNCTION FRONT DUCT
Odor resistant INTERIOR
5MM PEEL-AWAY CHEEK & SIDE-TEMPLE PADS
FIXED CHIN CURTAIN
PRO SHADE SYSTEM COMPATIBLE