Depends where you are and what track. Some tracks require helments even if you run 19 secs in the 1/4. For auto-x and road racing, you need a helmet, or the people sponsering the event are not very safety conscious. check out this place http://www.racerwholesale.com get a full face SA2000 helmet for less than $200. I would buy a cheap helmet..what if you actually end up needing it!neil said:oh, so if you arent quick, like me u dont need a helmet??