My next helmet I'm looking to also handle rotational or angular acceleration issues in a crash,
seems to be the talk now.
As mentioned in earlier post in this thread about the company 6D's new helmet.
Bell's new line of Star helmets are also using a new technique to help
this issue.
"The 6D system uses two EPS liners are connected by 54 elastomeric isolation dampers, which look like little suction cups. The idea is that during an impact where the skull experiences rotational acceleration, the helmets have some flex and allow for some movement to help slow those rotational forces down."
"Bell uses something called the Flex Impact Liner. Basically, instead of using one solid piece of foam or dual density foam, the Bell has three unique protective materials which are layered to address low, medium, and high speed and rotational impacts. The inner liner system can rotate relative to the middle and outside layers, which gives the helmet just enough flex to reduce the rotational acceleration translated to the brain."
The Bell "Race Star" helmet is my pick for my next helmet.
5 shell sizes
Snell rated
Carbon shell (1500gr)
Flex Impact Liner
Raceview Orientation
http://www.revzilla.com/common-tread/new-bell-star-series-is-a-game-changer