Frasier and Niles must learn to ride bicycles for the first time in their lives, in order to participate in the KACL Bike-a-thon.
- Kelsey Grammer as Frasier Crane
- Jane Leeves as Daphne Moon
- David Hyde Pierce as Niles Crane
- Peri Gilpin as Roz Doyle
- John Mahoney as Martin Crane