A customer dropped off a Racing Zero with me.


These are the wheels that came on the bike that rolled in under its own power.
Before I even took the tires off, I was able to call out that the tube inside was R Air on the front
and Specialized on the rear—
there's definitely a reason for it, of course,
but it's like a magician's trick, so I'm keeping why it is a secret.
（By the way, it's not the valve cap）

The customer mentioned there might be a significant centering issue on the rear wheel,
but it wasn't really that bad.