Keith, try webbikeworld.com. Use the link to the helmet section. There is probably more info than you need or want. But I think you'll find all the info your looking for. Don't forget the "sizing" and "helmet shapes". You would eventually learn all of that, but this way you'll be informed going in.
For the differences between DOT, ECE, and Snell, it will probably be best to go to each website. But take a pen, a large pad, drinks and food with you. It will take a while and some find it confusing, even overwhelming. After that, your next vacation can be spent reading helmet reviews and ratings.
Good luck. Let us know what you settle on.
PS: I have been a member of Consumer Reports for many years. I have NEVER seen test or ratings on anything motorcycle related. A few recalls but that's it.
2003 GL1800/MotorTrike Adventure IDMWT#25x3
Ride often. Ride far. Ride safe and do much more of both.
Give a man a fish and feed him for a day. Teach him how to surf the GWOF and he won't bother you for weeks, maybe months
I'll be waitin' for you at the end of the road.
If everything had gone as planned, it would not have been an adventure.
Last edited by Randy Hawes; 07-02-2019 at 11:38 PM.