Thanks Mark, I knew this wasn't brain surgery. Rodney
>
>> Rodney wrote: I recently had the fork on my Colnago Super
>> rechromed and the inside diameter of the steerer tube is now
>> too small to easily fit the stem.
>
> I seriously doubt chroming has reduced the ID of the steerer - the
> problem must me something else. Most likely I'd say, the fork was
> dropped and landed on the top of the steerer, peening it over a bit at
> the very top.
>
> Due to properties of electromagnetism and the sheer volume (or lack of
> it) inside the tube, chromium ions will be very strongly inclined to
> deposit on the outside of the tube. Any that stuck to the inside will
> be predominately close to the top.
>
> A half-round file, followed with the flap-wheel if necessary, should
> have a 22.2 mm stem going in good as new in no time. A reamer would
> also work, but they are more expensive tools, and not necessary in this
> case I bet.
>
> Mark Bulgier
> Seattle WA USA