Replace a helmet immediately after any significant impact, even if theres no visible damage the foam is designed to compress once and wont protect the same way twice
Notably, it has the XQRS system, which allows for quick and easy screen removal, as well as micro-openings for increased ventilation when riding in the city
Besides the riders speed, there is the additional force of their feet pushing forward through the air that you have to consider, so you can make big gains there
The Aviation Safety Reporting System allows air traffic controllers, pilots, and flight attendants to submit near misses and then publishes their lessons online for everyone to see
This has loads of Velcro on the inside, for the attachment of modular pouches for organization