What To Look For
Different types of helmets perform better for different types of riding. Basic helmet types include road, commuter, mountain bike, downhill mountain bike and BMX. Get the type that corresponds to your own style of biking. Size the helmet to be sure that it fits your head snugly without much movement; to offer full protection, it needs to stay in place. Adjust the sizing hardware and straps and verify that it sits level about an inch over your eyebrows and doesn't shake freely off your head. Consider the amount of venting on the helmet and purchase one that will be cool enough. Avoid excessive venting on a mountain bike helmet, as rocks, branches and other debris can slide into large vents and injure you. Also consider the fit system and padding to determine whether the helmet is comfortable, secure and easy to use.
Common Pitfalls
Don't use helmets from different sports for biking. Though it may seem like you're getting the same protection, each sport has its own safety criteria. Current road, commuter and mountain bike helmets all fall under the CPSC safety standard, while helmets like downhill mountain bike and BMX fall under more stringent standards. Get the helmet that offers the necessary protection for your style even if it means spending extra money.
Where To Buy
Fit your helmet before purchase.Should shop at a bike shop, sports store or department store with a bicycle department. For the best quality helmets, shop at a bike shop. If you must shop online, make your helmet purchase at a reputable retailer with full return policy like Backcountry or REI.
Cost
Commuter or sport helmets are inexpensive at $20 or $30 (2009 prices). Other helmets, such as road and mountain biking helmets, are typically more expensive, running from around $50 to $230. Full-face downhill mountain bike helmets can also be quite expensive and are usually in the $80 to $400 range.
