Simon Brooke wrote on 30/04/2007 16:46 +0100:

Small flats can sometimes be cleaned up by a little gentle application of a
file or a grinding wheel. You're unlikely to correct a major one easily (I
have a particular favourite front wheel languishing in the shed because it
has a bend in one side of the rim which I can't find a way to correct.


Clamp a block of wood onto the rim wall - inside or out depending on
which way the bend goes. Take a small hammer and gently tap the rim
until it is flush along its length with the wood. Sounds hard but its
actually quite easy to do.

--
Tony

"The most savage controversies are those about matters as to which there
is no good evidence either way."
- Bertrand Russell