Key Features
• 2 shell sizes
• 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 R SV are made of hypoallergenic fabrics and are removable and washable
• 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
• When pressing the visor lock button, it releases the visor to a first anti-fog position, allowing optimal airflow to reduce fogging
• Newly refined Airflow Channel System design for enhanced airflow efficiency, with dual-button front intake for precise ventilation control
• Retractable sun visor that fully covers the entire viewing area
• MT's patented Quick Visor Swap System makes it easy to change shields in 5 seconds, even with the helmet on
• Housing for intercom system headset
• Nose deflector
• Micrometric closure with double teeth retention system to ensure maximum safety
• 3 point protector system - safety base that prevents rubbing, protecting the helmet and improving its hygiene
• Eco-conscious - life of the unit can be extended with removable elements that are easily replaceable
• Visor: MT-V-28C
• 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