Key Features
• Shell made of HIRP (High Impact Resistance Polymer), a material that combines the best qualities with respect to the safety-weight ratio
• All interiors of the Thunder 4 SV are made of hypoallergenic fabrics and are removable and washable
• Pinlock® MaxVision™ 70 anti-fogging lens (prepared)
• Emergency release system for fast and safe extraction in the event of an accident
• Shield lock prevents unintentional opening of the shield in the event of an impact
• Improved retractable sun visor that fully covers the entire viewing area
• MT-QVSS - MT's patented Quik Visor Swap System makes it easy to change shields in seconds, even with the helmet on
• Reflective fabric - light reflection system designed to be seen in the dark
• Bluetooth compatible, new standard intercom cage designed for Universal Communications System intercoms, the new market standard
• Micrometric closure with double teeth retention system to ensure maximum safety
• Air flow channel system - highest possible cooling flow with the lowest possible drag and air resistance
• 3 point protector system - safety base that prevents rubbing, protecting the helmet and improving its hygiene
• Eco-concious - life of the unit can be extended with removable elements that are easily replaceable
• Visor: MT-V-28B
• Pinlock: DKS435
• ECE 22.06 certification

Standard Helmet Sizing Guide

Please use the conversion table below to determine the right size for you:

Size	XXXS	XXS	XS	S	M	L	XL	XXL	XXXL
Adult	49-50cm	51-52cm	53-54cm	55-56cm	57-58cm	59-60cm	61-62cm	63-64cm	65-66cm