Re: Wow great site!
Yes, the 350 and 360 tachs are geared the same ....so either will work on the other bike... Several of the larger gauges also use the same ratio's, but I'd have to check my notes...... AS FAR AS LEGAL, you don't actually have to run a "Speedometer", BUT in MOST states, you DO have to have an operable/operating ODOMETER due to the "actual mileage" laws....
Since MOST of my bikes are built from several "donors" and I certify "mileage unknown" on their titles, I DO occasionally run "just" a tach.... Just be willing to "explain" to the officer when/if you get caught.... Steve