Historical clue formulations

• E-bike alternative — 2024-08-11
• Hybrid vehicle — 2023-04-29
• Transport in the film "Roman Holiday" — 2023-02-24
• Convenient transport through urban traffic — 2021-06-20
• Portmanteau ride — 2017-08-24
• Scooter — 2014-01-17
• Fuel-efficient transportation — 2010-05-14
• Alternative to a Segway — 2005-11-25
• Was in a blue state — 2005-10-09
• Bike that zips — 2002-06-10
• Putt-putter — 2000-12-24
• Cheap wheels — 1999-05-05
• Bike that zips in and out of traffic — 1998-05-18
• Two-wheeler — 1997-11-27
• Cousin of a minibike — 1997-11-12
• Island transportation — 1996-01-28
• Two-wheeler — 1995-09-11