Let me start by saying I have around 100 k miles on car tires on my spyders we have owned and have been happy with them, both front and rear. While watching the latest Shawn Smoak video he was doing on the parking break he spotted a car tire on the bike he was working on (happens to be my wife’s bike) that was in for service. His comment was “ oh car tire , danger danger” then he moved on about the adjustment of the parking brake. When I went in to pick the bike up and asked him about the comment his reply was that the car tires affect the traction control system and it’s not as safe. I value Shawns expertise and was wondering what the other “experts out there have to offer” I will most likely stay with car tires as I have had no issues with them. I will add that I sometimes ride very aggressive and have never been spanked by the Nanny.