Hi, my twin is going to get a rebore and new pistons. The only things I didn't replace on the recent rebuild were the pistons. I knew they and the bores were worn but I wanted to see whether with new rings fitted they would pass as OK - they didn't! I now have the pistons but asking local friends has drawn a blank on a good and reliable place to get them rebored. I've been given a few places to avoid, but that's all. I live between York and Hull in the UK. Thanks for any help.