MT Thunder 4 SV review: Full face, sport-touring helmet with Pinlock® Max Vision visor, retractable sun visor and airflow channel system. This guide considers the listed features and the checks to make before buying.
This is a specification-based buying guide, not a hands-on road test. We may earn a commission from purchases through our links, at no extra cost to you.
Key features of MT Thunder 4 SV
Sportsbikeshop lists the following details for the checked version:
- Removable and washable, hypoallergenic fabric interior
- Emergency release system for fast and safe extraction in the event of an accident
- Shield lock prevents unintentional opening of the visor 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 visors in seconds, even with the helmet on
- Reflective fabric – light reflection system designed to be seen in the dark
Protection and construction
The listed approval is ECE 22.06. Check the exact helmet label and specification for the version you are buying, particularly if you need it for a track event.
Fit and adjustment
The chin-strap fastening is Quick Release. Make sure you are comfortable operating that fastening and adjusting it securely before choosing the helmet.
Comfort and everyday use
The interior is removable for cleaning. Follow the manufacturer’s care instructions and refit the pads in their original positions.
Fit and the exact version
Try the helmet on before committing to a size: check even contact around the head and secure retention with the strap fastened. Shell specifications do not establish whether its internal shape suits you. If you use glasses or an intercom, check their fit with this exact helmet and the relevant fitting instructions.
Versions and options
The checked listing links to these options: Matt Grey, Yamanaka Matt Fluo / Red, Matt Black. Check the selected version and available sizes before ordering; the linked price may apply to a particular option.
See our motorcycle helmet reviews for more buying guides.
Related reading: MT Draken Review.