Related Clues:

• One of a rotated set
• What rolls around a lot?
• Feature of an old-fashioned swing
• Sonata quartet member?
• Ring on the road
• It may be worn on a road trip
• Need to slow down
• It's fixed when it's flat
• Become drowsy
• Flag in west Ireland
• Thing changed by a pit crew
• Whitewall, for one
• Road roller
• Lose stamina
• Pit stop replacement