This By City 90 Degrees Fibreglass review covers the fibreglass flip-up version with a micrometric fastening and supplied anti-fog insert. Its removable interior and included carry bag are useful everyday details, while the front-section mechanism deserves an in-person check.
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.
Front-section operation and visor care
The listing describes a P/J locking system and ECE22.06 approval. Follow the exact helmet instructions and label for permitted front-section positions, checking that the mechanism engages securely. The clear injected visor should be assessed with the chin section in the configuration you will use.
The supplied anti-fog film fits the prepared visor; confirm the matching part and follow its fitting procedure. Ventilation inlets, multi-density padding and a washable lining complete the core specification. The flip-up front gives access to the face when stopped; check the permitted riding configurations in the supplied instructions.
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.
See our motorcycle helmet reviews for more buying guides.
Related reading: By City 180 Tech Review.