Hi - I have been working on my '97 Harvard. I've replaced the discs and pads and sent the original calipers off for a full refurb and paint.
The discs are 20mm and I have fitted greenstuff pads.
The problem is that the caliper will not now fit over the discs and pads - nowhere near! The rear ones were tight, as you would expect, but I reckon I'm somewhere around 8-10mm off getting the fonts in.
The piston is fully retracted;
My recollection is that the original pistons went back further? My worry is that the wrong pistons have been fitted, here is the length below. Can someone confirm my thinking or measure a piston if you have one kicking about, or have I missed something else - please help, this is driving me nutz!!