its not just sport bikers, its everyone. i have been riding for a month now which has caused me to be more aware when driving but also i see asshats every day ride like they are the only ones on the road like a group of about 5 doing about 90 through the 198 in the middle of the day this week.
on the way to my girlfriends, i watched some guy prolly mid 40s - 50s going down twin cities weaving in his own lane and then suddenly cutting over infront of a car with no signal or anything. luckily the car was paying attention or the guy would have been thrown off and run over.