2007 Cali vintage speedo

[newbedoo]

I just bought a used 2007 Califonia Vintage and the speedo is out of wack. This is a US motocycle with the speedo in miles with klh in small numbers. When I am traveling with traffic in a 90K (55mph) area the speedo reads 80 mph or about 160klh. Is there some way of calibrating the speedo? I thing maybe some someone may have tried to set it to show klh with the mph numbers. Is that even possible?
Been a BMW air head for maney years this is my first Guzzi, love it!

[Wayne Orwig]

Any chance that the rear drive gears were changed?
What is the tach reading at 55mph actual?

[Ncdan]

My 07 CalVin speed O was 5 mph off, tested by GPS. It also quit at 7k, chezzy ITT brand which many had failed early in life. There is no economical fix so I just got a good quality bicycle GPS which works great.

[lazlokovacs]

yep those ITI speedos are really rubbish!!

The previous generation of Calis had Veglia instruments which might be better quality........