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

UK Delivery Charges

Free delivery on all orders £100 and over*

All orders over £100 are delivered FREE*. All orders from the Mega Motorcycle Store are dispatched using secure couriers, which are fully insured and trackable. All customers receive an online tracking number when their order is dispatched, enabling them to track the location of their delivery online.

*Free Delivery over £100 includes mainland UK only. Excludes Northern Ireland.

UK Delivery Charges

• Orders under £100: £4.99
• 24-hour delivery: £5.99
• Saturday delivery: £14.99
• Orders over £100: FREE 48-hour delivery
• Refund charge: £2.99

Our UK delivery charges apply to remote areas such as Shetland and the Highlands. For all other destinations, please add your items to the shopping cart on the website and calculate the delivery costs to your destination.

UK Delivery Times

Orders must be placed before 1pm for same-day dispatch.

Please allow 1-2 working days for delivery within the UK.

For deliveries outside the UK, please allow 5-7 working days.

Next working day delivery cut-off time is 13:00.

Orders placed on a Bank Holiday will be dispatched on the following working day. Deliveries to Ireland and Scotland may take an extra day depending on your location.

Orders placed on a Saturday or Sunday will be dispatched on the Monday. If you have paid for Next Working Day delivery, your delivery will be due on the Tuesday.

European Delivery Since 1 July 2021, most goods to the EU (including gifts) are now subject to VAT and potentially a clearance fee. The taxes and duties applied depend on the individual contents of the parcel, the weight, and the value. We cannot estimate the costs that may occur and we are not responsible for any fees you may need to pay.

To get a shipping quote for your country, please follow the checkout process and input your delivery address.

Terms and Conditions:

Express delivery applies to mainland UK only and cannot be guaranteed for the Scottish Highlands and other isolated areas. Please contact us if you need further details.