If you read one of jyl's later posts,you will see the bike choice was last minute; that his city bike had an issue so he grabbed his road bike but forgot an item or two that bike might need for a night ride that were SOP on the city bike. As one who lived life by bike until my mid 30's, I can relate. Bikes were my car, If I had to get somewhere and my preferred bike had a flat or whatever, I'd have to grab another one. (Back in the day, all my bikes had working sewups under the seat and a frame pump. But training tires and one spare wasn't always enough in Boston at night whereas that setup served me well for many epic rides into rural Massachusetts.)

Ben