The Thirty3 full-face helmet has been designed specifically for mountain bike and BMX use but exceeds the DOT standard for motocross lids, showing just how robust it is.
The fit is slightly less face-hugging than on the similarly priced Giro Cipher, but the extra room doesn’t relate to any more movement when riding. The pads and liner are comfy, though the shape of the helmet means its fit won’t please everyone – and its hot rod-inspired looks are equally opinion dividing. It secures with a D-ring closure and has a popper to keep the tail of strap from flailing around.
As well as the whole liner being removable for washing, the cheek pads are designed to be easily removable by paramedics should you crash and the lid is also compatible with the airbag-based Eject Helmet Removal System (not included).
The vents may be small but they provide enough airflow to keep you cool, and we didn’t have fit issues with any of the goggles we tried the helmet with thanks to the large front opening. The Thirty3 comes packaged in a helmet bag akin to those that come with lids at twice the price and a spare peak is included too.