Bimota SB3 - which speedo unit?

[texascbr]

Here I am trying to get a working Speedo sending unit on my 1980 Bimota SB3 #179 which is based on a 1980 GS1000. First one I purchased appears to have been able to fit with a little machine work but the damn machinist lost the damn thing and I dont have any other specs for the unit.

My second attempt at ordering a speedo unit had one received that appeared to be the right depth but the width was 62mm when my wheels need a ~56mm unit to properly fit. Does anyone have any guidance and preferably a Suzuki part number for a speedo sending unit that will mount to my wheel?

The size needed appears to be ~56.66. wide where it sits against the wheel where the two tabs engage and 32mm deep where the axles goes through the unit to work on my little scooter.

Any help is appreciated,
Chris in Houston

[tom203]

Don't know suzuki #'s for these things , but I have a spare off an early 80's suzuki. Overall width of housing is about 55 mm with a 32 mm depth of thru hole (15 mm inner dia and about 22 mm outer dia of hub)

[steve murdoch]

You will have to provide us with some pics of your Bimota before you receive any more help.
Welcome to the site.