I have just removed my front wheel to have a new tyre fitted. For some reason I was looking through the Hitchcocks on-line parts book and it shows that the spacer on the disc side should be stepped (see photo). My spacer is not stepped and has been like this since new. It is the same as the spacer on the speedo cable end, but a bit longer. All fits well and has never been a problem.
Any observations would be appreciated.
Nigel