Here is the report on CPSC standard testing for their DBX 3.0 Enduro with removable chinbar. Impact liners are evolving, including Smith's models with collapsible plastic modules looking like hollow straws, POC's honeycomb material, Kali's carbon nanotube material and Conehead designs with dual density impact foam in helmet liners.
Leatt and Kali are using Armourgel hourglass disks in their liners and claiming reductions in impact forces beyond standard EPS, including rotational forces.
Helmets for electric bike riders began to appear in 2013, typified by the Casco E-Motion Cruiser.
There is no separate ASTM, CPSC or European standard for ebike helmets, but in 2016 the Netherlands published a new standard for ebike helmets.
We recommend looking for a helmet that fits you well, pleases you as wearing apparel and has a rounded, smooth exterior with no major snag points.
We did not find many manufacturers at the Interbike fall trade show, so we are introducing a rolling update for this page, dating the reviews.
The MIPS slip-plane interior layer continues to proliferate.
It is claimed to make it easier for the head to move about 5mm (0.2") sideways at the moment of impact to reduce the rotational energy passed on to the head. Manufacturers are beginning to use other technologies with similar effects, hoping to mitigate rotational injury.
They have some combination of front and rear cameras, phone integration, Wi Fi, navigation connections, turn signals, brake lights, music players, intercoms, connections to bike computers and even impact sensors.We found few new helmet manufacturers at the Interbike trade show last fall, and fewer new models.There are new models in 2018 that are worth a look if you need a new helmet.We also have a page with the short list of models where the STAR ratings and Consumer Reports agree, giving you both high level impact and low level impact ratings to aid your selection.Consumer Reports had a 2016 article that they have updated on their web site.The compact profile that we think is best when you crash is now a well-established fashion trend.But there is still no verifiable major advance in impact performance, ventilation or wearability this year that would compel you to replace your current helmet.Virginia Tech's Biomechanical Engineering department has developed a methodology for testing helmets for their ability to reduce concussions.After football and hockey helmets, they launched ratings for bicycle helmets in June of 2018.One designer has shown a prototype helmet made of folding paper, but so far it is only an interesting concept and can't meet standards without a new material.Folding helmets: more folding designs are coming to market this year, spurred in part by shared bicycle programs. They include the Overage Plixi, Biologic Pango, Carrera Foldable, Closca and Morpher.