Basically im using a bike speedo in my mini. When i first read about this i was amazed and looked in to some speedos's because i didnt think they would read that fast but i found that the majority of them read up to atleast 150MPH. As im just testing this out at the moment i wen to Halfords and brought the cheapest speedo they sell, which was about £6 or there abouts.
Once i had the speedo i decided that i wanted it to be mounted in a 52mm guage, so i used an old smiths gauge that i wasnt using anymore, So i took the chrome ring off and removed the glass. I then removed the guts of the gauge so i now had a bare 52mm shell. As the bike speedo didnt fit in the gauge i had to grind the corners down a little (mainly just rounding the edges off) once this was done the bike speedo would now fit, however i came ac cross my next problem which was the bike speedo was to thick, so i had to grind part of the back off the 52mm gauge casing, i left some of the back still though so that the bike speedo wouldnt fall out of the back. Once this was done i put it all back together but i added the touch of putting the smiths logo back in lol.
This is where i am at with mounting the bike speedo in the 52mm gauge, however im going to black out the side parts of the glass so that only the screen is visible.

I then started out by finding a place to mount the magnet and sender, first of all i was thinking about mounting in the rear drum, but i thought maybe the pot joint might be a better place. As i had a engine that im rebuilding i thought that it would be better to mount it on the pot joint because i would have alot of space to messabout getting a bracket made, etc anyway, i decided that i would mount it on the passenger side.

I then set about making up a bracket to mount the sender on, so i got the grinder out and cut a section out af an old door skin lol. Once i cut out the metal i put it in position and found where i would make the bend in the sheet, so that the sender could be mounted parallel with the pot joint.
Once i have made the 90* bend i found that i could get a better fit by cutting a section out the side of the bent metal that i would be mounting to the gearbox.


This would then be mounted like this:

Once i got this far it started to get dark, so i brought the bike gauge inside and decided to extend the cable going from the bike speedo to the sender:
Then sender will be mounted on my bracket like this:

This is as far as i got today, so tomurow all i have to do is mount the magnet onto the pot joint and drill two holes into the bracket, so that i can used the bolts shown on the gearbox to hold the bracket on.