Digital Speed Sensor with Mechanical Speedometer

Hello,
I am adapting the forks and rims of a Ducati Monster to my KZ750.
I would like to keep the original Kawasaki (mechanical) speedometer, while Ducati has the digital sensor.
Is there a converter to transform the sensor signal into mechanical rotation?
Can someone who has already adapted different rims give me a suggestion or explain to me how he managed to solve the problem of the speedometer?
If you have other, even different solutions, they are welcome.
thank you

I never heard of anyone doing this, but from a quick search >> Speedhut Speedbox .
If this is unsuitable, then there may be something else out there. Good luck.

internet search = digital to mechanical speedometer.
other searches: motorcycle digital to mechanical speedometer. motorcycle electrical to mechanical speedometer converter

martin_csr wrote: I never heard of anyone doing this, but from a quick search >> Speedhut Speedbox .
If this is unsuitable, then there may be something else out there. Good luck.

internet search = digital to mechanical speedometer.
other searches: motorcycle digital to mechanical speedometer. motorcycle electrical to mechanical speedometer converter

Thanks, I had already done these searches on the internet finding that converter.
Since many people change rims at the KZ, I would like to know how they manage the speedometer (even if the mechanism is on the wheel, the rotation should be different)

By mbcustom: .... (even if the mechanism is on the wheel, the rotation should be different).

Not sure what you mean by that & it doesn't matter here, but as long as the cable fits, then there shouldn't be a problem fitting a different mechanical drive wheel. Japanese speedometers are calibrated to spin 2240 revs per mile, same rate as the drive units at the wheel. I've compared a number of pinion & speedo drive gears from various models & done the math which is pretty straight forward.