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Carmel, IN
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Arai Quantum-X
The Quantum-X is built on Arai's Round Oval shell — the right answer for riders whose Intermediate Oval helmets pinch at the temples. Same R75 shape philosophy and PB-cLc construction, fitted to a wider, more circular head profile.
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Arai
Quantum-X Oriental Helmet
$959.95
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Arai
Quantum-X Wave Helmet
$959.95
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Arai
Quantum-X Steel Helmet
From $899.95
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Arai
Quantum-X Helmet
From $789.95
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Arai
Corsair-X/Quantum-X/Signet-X Helmet Cheek Pads
$61.95
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Arai
Quantum-X Helmet Interior Pad — 2XL
$50.95
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Sold OutArai
Quantum-X Helmet Interior Pad — XL
$50.95
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Arai
Quantum-X Helmet Interior Pad — M/L
$50.95
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Arai
Quantum-X Helmet Interior Pad — S
$50.95
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Arai
Quantum-X Helmet Interior Pad — XS/S
$50.95
Fits after a chain conversion
These parts fit your bike once its final drive is converted to a different chain size: front and rear sprockets plus a chain of the right length, all changed together. Each part's Fits table names the conversion.