Flat wrench size question

wrote:
On Aug 7, 12:21 pm, Hank wrote:
On Aug 7, 4:56 am, Peter Cole wrote:

Twitchell wrote:
If you could carry only three sizes in your underseat bag for on-road repairs,
what sizes should you carry...in metric.
I don't believe in carrying any tools (other than to fix flats) on a
road bike, I carry a multi-tool off-road. I can't think of a scenario
where I'd need a flat wrench.
That's because most modern road bikes don't have fasteners that need
them.

Some of us ride post-modern bicycles, and thus need
a 15mm for our track wheels, a 14mm for our oddly-
kitted miche track hubs, and a 1/2in (12.7mm?) for our
off-brand quill stem(s?).

Many of my bikes have a variety of parts. I don't expect to have to
remove them while riding, and I've never had the need to. Why would you
remove a stem? Disassemble a hub? Why not use QR's on track hubs?