[squirrel_hunter]

I've never used them and to be honest don't even know if they are still there as its been a while since I've been down there, but...

At the Bedminster side of Redcliffe Hill there is a tower block with some shops including a Spar or Post Office at the end. At the other end of the rank there should be a leather repair/ alteration shop. I remember being told of it by someone in the bike trade a few years back and it came recommended.

Worth a shot.