The speedo needle wobbled, and there was an unpleasant crunch from the back wheel every so often while riding the bike. Turns out that one of the notches on the back wheel hub was cracked.
Mark came over last weekend and helped me cut out two new notches to sit a new speedo gearbox onto. We did this very carefully by hand with a metal file - making sure no filings went down into the bearings.
Tedious but looks good. You can see the original and damaged cutouts at approximately 9 o'clock and 3 o'clock in this photo, and the new ones at top and bottom of the shot.
When we came to fit a new speedo cable it would not connect to the speedo - turns out that there are two types of speedo (chronometric and magnetic) and that we had the wrong type. We're impatiently waiting for the new one to turn up!
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