Resetting Smith odometer

If you are restoring,  then why not get the speedo and tacho 'restored' too? Just getting the mileage reset shouldn't cost too much more than a new bezel and glass to be fitted.

I have good experience with Stuart Walker (Mansfield) and Ashley Pople (Aldershot,) for this, Timeless motorcycles (was AA Gaggs) are also noted to be very good. 

Regards, 
George 

If you have access to a lathe and can competently use it, you can easily make the tools to roll the bezel off and on (reusing said bezel) There is a book covering the subject of smiths magnetic speedo overhaul available. 

Remember what happened to Ferris Beuler when he tried a similar stunt on a Ferrari... 

Peter,
Please can you describe the tools and method for using a lathe to remove and replace the bezel.
This technique will be useful for replacing a broken glass or repainting the inside of the body to reflect more light for night riding.

The technique is outlined in the book 'Magnetic speedo repair' by Graham Blighe. I did it a bit differently using easier to make tools. Get a block of nylon/delrin or at a push a lump of hardwood. Face off and turn a recess the depth and diameter of the bezel. Hold the speedo/tacho body into the recess using the revolving center in the tailstock (you will have to find/make/adapt something to hold the body here, i used a cone cut off a megaphone, fits just nicely to press the body into the recess) now using a hook shaped tool ground up and well polished mounted in the tool post you can peel the bezel back to release the body. Dont do this under power, just pull the chuck around by hand. Once the inner-eds are sorted out remount the body glass bezel etc and use another tool ( i use a ball race mounted at center height) to roll the bezel back to grip the body (this is called metal spinning)  Takes longer to describe than to actually do the job.