Advanced Polycarbonate Composite Shell - Lightweight, superior fit and comfort using advanced CAD technology - Aerodynamic shell with large eyeport for greater visibility - Impact absorbing, multiple density EPS liner Flip-up Chin Bar and Face Shield - Single-button release allows chin bar/face shield to be easily opened or closed with either hand - Flip-up chin bar makes communicating with with your helmet on easier and wearing glasses more comfortable XBi2-H Plus Wireless Intercom Compatible - Built-in recess pocket with panel cover allows the XBi2-H unit to integrate with the IS-Max BT helmet, minimizing wind resistance and creating an ergonomic design ACS Advanced Channeling Ventilation System - Multi stage intake vents combine with rear exit vents to provide flow-through ventilation - Chin bar intake vent provides airflow across the shield interior to help eliminate shield fogging SilverCool™ Removable/Washable Interior Lining - Moisture-wicking and odor-free interior with advanced SilverCool™ antibacterial fabric - Comfortable, removable and washable SunShield Visor System
Wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large. If it is painful to wear, it is too small.
ADULT SIZES
Size
Centimeter
Hat Size
Inches
2X-Small
51-52
6 3/8 - 6 1/2
20 - 20 1/2
X-Small
53-54
6 5/8 - 6 3/4
20 7/8 - 21 1/4
Small
55-56
6 7/8 - 7
21 5/8 - 22
Medium
57-58
7 1/8 - 7 1/4
22 1/2 - 7 7/8
Large
59-60
7 3/8 - 7 1/2
23 1/4 - 23 5/8
X-Large
61-62
7 5/8 - 7 3/4
24 - 24 3/8
2X-Large
63-64
7 7/8 - 8
24 3/4 - 25 1/4
3X-Large
65-66
8 1/8 - 8 1/4
25 5/8 - 26
HJC IS-Max BT Sprint Modular Helmet Reviews :
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HJC IS-Max BT Sprint Modular Helmet
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