From that summary of the Snell standards, I'm having a hard time figuring out how the B-90 standard differs from the B-95. The sentence stating that helmets that meet only the lesser standard offers no significant difference in performance (I'm paraphrasing) has me scratching my head. I guess I need to read the standards themselves. I'm not interested in wearing a full face helmet, although maybe the OP is. At least among Bell (the brand that fits my head the best), the only ones that appear to meet the B-95 standard are full face. I did see some good information on Snell's website on how to properly fit and adjust a helmet. In any event thanks for the links, Oak and Muirenn.