I am looking to buy a new trials helmet. Are there any significant differences between a trials specific helmet and conventional open face helmets from mnufacturers such as Zamp, KBC, Arai, Bell, etc? It seems to me that in general the trials specific helmets have more sharp, angular edges instead of smoother, more rounded profiles. This appears to be a cosmetic/styling issue that could cause more damage in a crash. Trials specific helmets might also have better ventilation. I don't know if they are any lighter or offer better visibility. Any comments would be appreciated. Thanks.
tightwoods