Brake Adjustment or

[Zen]

Did you release your rear brake on the handlebar?

No, I have a quick release lever on the calipers.

Are your dropouts horizontal or vertical? Horizontal dropouts are more likely to lead to a misaligned wheel if you don't center it carefully.

Vertical. I just need to drop the wheel back in again, thanks.

What kind of bike would have horizontal dropouts? Seem like that would make it hard to remove the wheel, like the derailleur would be in the way.