Making time to exercise may become more appealing when you have a hot rod stroller to show off. The BOB Revolution is light and fast, with an adjustable suspension system that smoothes the ride for your petite passenger. Lock the front wheel for jogging or let it swivel for maneuverability when walking. A car seat adapter, $59, secures infant car seats from Britax, Graco and Peg Pérego. Walking: From birth with car seat adapter. Running: 8 months to 70 pounds.