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Discussion Starter · #1 ·
My c6 already has the green gear which is an 18 tooth. My speedo says 80 when I am really doing 65. what color gear should I try from TCI, the red 21 tooth, or white 23???

Also does the higher the gear count mean the slower the MPH reading? Thanks guys.
 

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Discussion Starter · #2 ·
nevermind, I just ordered both. This thread can be deleted.
 

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Yes, more teeth on the driven gear slows the speedo. I would go for the 21 as closest. It should read 66 to 67 at actual 65.

David
 

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Discussion Starter · #4 ·
thanks, I may have an extra one if anyone needs it.
 
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