Speedometer error

[crackedpot]

I'm starting a lot of newbie threads here! Stock 06 750, seems like my speedo is off 11.5% based on timing a 10-mile run (73 mph indicated = 65 mph, 34=30, etc.) and odometer 8% (10.8 mi indicated is actually 10.0). Is this common? An easy fix? My first clue was traffic seemed to be going really fast and I passed a trooper shooting radar in a 65 showing 75 on my speedo, and a pickup was passing me!

[MrBertE]

I noticed the same thing on my 06 750. About exactly the same percentages as you.

[DreKat]

all speedo's are off except for the digital ones.