Dana writes:

>
> This may sound like a really dumb question, but are you sure it's a 160mm
rotor?
>
I don't think that would matter. On my fork, the inside of the disc-side leg is
flattened high enough for even a 180mm rotor to fit. Don's fork isn't flattened
there, so my first guess was that it wasn't a disc fork. Reversed dropouts? Is
the rake right? Maybe they put the disc mount tabs on the wrong fork leg?