There are three neighborhood dogs that always run out to the road and give chase when I'm riding my roadbike.They know me and it's not like I'm going to be bitten. Yesterday, I rode past the first one on the Cross Check. It just raised it's head and watched me ride by. I got to thinking that no dog has come out to chase me on the Cross Check. So I went by all three dogs twice. Not one paid me any attention. I saw all three so it's not like they were penned up. I wonder if the high pressure tires on the roadbike make a high ptiched sound that bothers them? Where as the Cross Check does not.