Suzuki 2 Strokes

Dear Suzuki Colleagues

I’ve got a box of old Suzuki parts mainly for the models T20, T250 and T500. One of the item was the following rev counter. It is mounted in an anti-vibration bracket. Do you have any idea if it is a standard arrangement (which model), standard one fitted into this bracket or especially made for racing? Diameter of the rev counter is about 60mm, the bracket about 100mm.
According the rev counter the gear ratio is 1 : 3.22? Does anybody know what ratio the rev counter of the above models have? 1 : 4?

Already many thanks for your feedback.

Best regards
Roland

This would be a race rev counter for a TR500.
Would it be for sale.

I've got a few photos showing that tach gauge fitted to TR500s. Time frame would be around the early 1970s.

Dear Old Racer and Allan

thank you very much for your feedback. I was thinking already in this direction.
Sorry, but I'll use it for my own project.

Best regards
Roland