Question: After-market clocks for singles

[vargas1]

Can anyone tell me the drive ratios for the speedometer and rev counter fitted to the late model Ducati singles? There are a few makes of 60 mm replacement clocks available but these may not be the right ratio for Ducati singles. For example, one replacement speedometer I saw has a ratio on the dial face of 60 mph = 2240 rpm.

Also, perhaps someone might know the drive ratios for the rev counter gearbox and speedometer gearbox?

Has anyone fitted after-market speedos and rev counters and what should I look out for?

Advice would be welcome.

Dave