What is a Bike Trotter? The Woof Cycle Bike Trotter lets you safely take your dog on bike rides with a design that takes into account both the laws of physics and dog behavior. The dog's ability to pull to the side is greatly reduced and the tipping forces are virtually eliminated. When not in use, the Bike Trotter can be rotated up for easy storage or removed by removing quick connect pin. Bike attachment can remain on bike. Harness not included.