hi i ride bike, but i had acne b4 i rode m.bike. so i dont think its the cause, though waering a helmet prob wont help.
all i can recommend is buy a helmet that allos the innerling to b fully removed and washed.
March.02 - July 2002:- 40mg Accutane
13 Dec 02 - Current :- Started 10mg Accutane per day bought off internet privately and i am 95% clear... just red marks to fade.. no more breakouts. i may get just a small red bump every now and then