Size Guide

The Thunder 4 SV is MT Helmets’ top offering in the Sport-Touring segment, known for its exceptional value for money. Designed for long distances, it provides superior ergonomics and a wide field of vision. Its ventilation system, optimised through fluid dynamics studies, ensures efficient airflow.The helmet features communication technology with a dedicated compartment for UCS intercom systems and integrated sun visor with maximum coverage. Additionally, it includes the MT-QVSS system, the safest and easiest on the market for quick visor removal. Committed to sustainability, it is designed for a long lifespan, minimising environmental impact.

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 100% MaxVision anti-fogging lens
• 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
• DOT homologation