replacing rivets

Hi,
My slightly mistreated Giant Defy has three rivets that are no longer usable - one rack mount point that sheared off, both (!) front derailleur mount points loose. I can deal with the first one, but obviously I need to get the derailleur ones sorted ASAP. Was wondering what the best way to remove the old rivets is (given that the derailleur mount is still loosely screwed in, with both screws just turning the rivets round and round in their holes) and whether anyone could recommend a bike shop (pref east London) who would be able to install new rivets, as I've yet to find one that is able to do this!
Cheers!
My slightly mistreated Giant Defy has three rivets that are no longer usable - one rack mount point that sheared off, both (!) front derailleur mount points loose. I can deal with the first one, but obviously I need to get the derailleur ones sorted ASAP. Was wondering what the best way to remove the old rivets is (given that the derailleur mount is still loosely screwed in, with both screws just turning the rivets round and round in their holes) and whether anyone could recommend a bike shop (pref east London) who would be able to install new rivets, as I've yet to find one that is able to do this!
Cheers!
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Posts
Drill out, treat exposed metal edge, insert a new one, any decent bike shop or fabrication shop can do it or you can buy the kit online to DIY.
Or you can bodge it by squid going epoxy in round the edge so it holds in place!
Thanks!
Treat the exposed edges with some paint to help prevent corrosion (assuming it's metal and not carbon).
Yup, that's the puppy, plus some inserts as well obviously.