Secondly I need to replace the rear brake pads. I have fixed copper brake lines - an initial dabble suggests that removing the caliper body to replace the pads may be difficult without potentially damaging the brake lines - am I missing something obvious here, is there another way to do it? I do have a piston wind back tool so hoping that won't be a problem! It does seem strange, and if I were building again I'd fit flexible hoses. But it works out OK in practice: just be gentle. Maintenance notes from Alcester Racing Sevens. Jonathan