Please don't take my last posting as "snell helmets are not safe". Just not as effective as they probably could be. Many helmet manufacturers are incooperating what is referred to as a "crush zone". Bell and Klim both use this technology. Some companies are using different densisty multilayer eps liners as well to try to make them safer. I know overseas they are using some different types of inner liners. We seem to be stuck with the age old styrofoam cup material (EPS).
When you hit your head, force is not only being transferred from your head outward, but also from the outside in. The EPS liner compresses and becomes very solid very quickly. If you have every felt a spent liner, it is hard like a brick! Some companies cheat this with the crush zones I was mentioning earlier. Different air pockets and chambers allow force to not only dissipate inward/outward, but also allows the liner to expand sideways. Dispersing energy away from your melon.
As to your fitment questions. I have always considered the Klim helmet to have a narrow fit. A little to specialized to fit everyone perfectly. Although I really like it. Bell on the otherhand has more of an intermediate fit. I find it very comfortable and will fit most heads. Not sure what the older model Bell's were like, but I know they revamped the fitment on the Moto 8 last year and continue to improve on this.
Hope some of this helps.
When you hit your head, force is not only being transferred from your head outward, but also from the outside in. The EPS liner compresses and becomes very solid very quickly. If you have every felt a spent liner, it is hard like a brick! Some companies cheat this with the crush zones I was mentioning earlier. Different air pockets and chambers allow force to not only dissipate inward/outward, but also allows the liner to expand sideways. Dispersing energy away from your melon.
As to your fitment questions. I have always considered the Klim helmet to have a narrow fit. A little to specialized to fit everyone perfectly. Although I really like it. Bell on the otherhand has more of an intermediate fit. I find it very comfortable and will fit most heads. Not sure what the older model Bell's were like, but I know they revamped the fitment on the Moto 8 last year and continue to improve on this.
Hope some of this helps.
