I'm now using a Giro Indicator helmet that I picked up for about $40.00. Because of the visor, it's considered an MTB or off road helmet but I don't think it really knows the difference. I think everyone else on my team have the "road" helmets. I have owned several different helmets, including Specialized, Giant and Bell, and this one seems to have larger ventilation slots than any of the others I have owned in it's price range. The more expensive helmets have more ventilation slots than the less expensive ones and the slots tend to be larger for better cooling. As previously mentioned, the less expensive helmets normally have an adjustable, "one size fits all" headband where the higher end helmets are sold by size. Since I always wear a sweatband or a do-rag under my helmet I kind of like the idea of being able to adjust the headband for the difference in the thickness of the two.
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HCFR Cycling Team
Ride Safe ... Ride Hard ... Ride Daily
2017 Colnago C-RS
2012 Colnago Ace
2010 Giant Cypress