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Discussion Starter #1
Hi. I've just purchased a 2001 929 and noticed that my speedo was out so I checked and it was running 15/42 sprockets. So I changed to 16/42 but it is still out. Any help would be much appreciated. Thanks in advance.
 

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Hi. I've just purchased a 2001 929 and noticed that my speedo was out so I checked and it was running 15/42 sprockets. So I changed to 16/42 but it is still out. Any help would be much appreciated. Thanks in advance.

Out by how much and at what speed?
 

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Discussion Starter #3
My gps says 107 and the speedo says 100.
 

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Not 100% sure but I think it was about 10khm difference at 100kmh
 

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My gps says 107 and the speedo says 100.

GPS may not be accurate, and the speedo error is probably normal.
Nobody has invented a speedo yet that is accurate at all road speeds. ADR's only require 10% accuracy I think, within legal speeds.
A mate of mine has been running GPS on the track and it doesn't even give the same speeds each lap.
 
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