Related Clues:

• Unicycle part
• It gets depressed a lot
• Space Mountain, e.g.
• Wash-rinse-dry, e.g.
• The four seasons, e.g.
• Recession/recovery combo
• Get around on a trike
• Some use a thumb to get one
• Hop a bus
• County-fair diversion
• Tandem mover
• Car, casually
• Catch a Greyhound
• Theme-park attraction
• Recurring sequence