I have a dalmatian. They were bred to run beside a horse drawn coach for long distances and guard the coach when it was parked. They definitely have the instinct to follow a bike. There are competitions where they go 25 miles with horses on the trails. I have seen them come in after 25 miles on the trail all ready to play. I use a springer type attachment on my bike and my dal does fine, although he has a high prey drive so I might lose him in the woods if he were not on leash.

Kathy