Related Clues:

• Ride a bike
• Stock market phenomenon
• Washer sequence
• Recurring period
• Recurring sequence of events
• Business phase
• Repeating sequences
• Wash-rinse-dry, e.g.
• The four seasons, e.g.
• Goes biking
• Recession/recovery combo
• Recurring sequence
• Washing machine sequence
• Travel by bike
• Go by trike, say