went into cycle gear couple days ago and dude said we got a set of the 3s ,cool I come back later with my wheels and hoops these re the 4s ,we dont have the 3s,I was pissed ,$200 more ,but im standing there with wheels and heading out in a few days ,I got him to eat the install ,so I bit the bullet ,,from what I hear the 3s and 4s aren't that much different ,,I think the 4s are better in the rain which I could care less about ,,,I only have a couple hours on tires but all I can say at this point is WOW ,,they lean in so effortlessly ,and carve a line ,,total confidence ,I think you'll be happy