Historical clue formulations

• Chopper — 2023-10-28
• Peloton equipment — 2023-05-03
• Go 10+ miles in a triathlon, say — 2022-09-20
• Triathlete's need — 2020-10-02
• Harley, e.g., informally — 2020-02-04
• Cycle — 2020-01-17
• Need for a triathlon — 2019-07-11
• Two-wheeler — 2018-08-27
• Do one-third of a triathlon — 2015-12-01
• Transportation for Mary Poppins or E.T. — 2014-07-29
• Ten-speed, e.g. — 2014-07-01
• Exercise ___ — 2013-02-09
• What might take a stand outside a school? — 2012-07-17
• Hog — 2010-08-29
• With 18-Across, the Tour de France, for one — 2010-01-18
• Two-wheeler — 2007-07-30
• Hog, so to speak — 2005-10-26
• Two-wheeler — 2005-01-30
• Triathlete's need — 2004-09-01
• Mountain ___ — 2000-09-14
• Pedal — 1997-12-17
• Two-wheeler — 1997-01-28
• Kind of messenger — 1996-08-28
• Messenger's vehicle — 1994-11-18