A helmet is one of the first safety items that you may need to purchase. Any vehicle that runs faster than 13.99 seconds, and all motorcycles and dune buggy-type cars, must have an approved helmet. Helmets must have a SNELL rating of SA2010 or SA2015, as well as those with an SFI rating of 31.1A, 31.2A, 41.1A, or 41.2A.