Re: [ST] YELLOW BOX speedo re-calibrator

["ASHLEY BENNETT" <spondon955@xxxxxxxxxxxxxx>]

If the speedo works off the front wheel how can changing the sprocket have
any affect ?
Ashley

> Chris,
>
> Actually changing the sprocket does affect your speedo.  Your speedo, even
in you car is based on the rpm of the output shaft of you transmission.  So
changing the sprocket on your motorcycle means your tires or either rotating
faster or slower (depending on the change) than what the designers had based
their calculations on.   On a car it's not a big issue, if you change the
final drive ratio you can recalibrate your speedo by changing out the speedo
gear, but on a bike recalibrating isn't practical because they don't make
the speedo gears for us like they do on for cars.  Now on our Triumphs
recalibration should be possible since the speedo is driven by the computer.
And why Triumph made it intentionally inaccurate by 10% is beyond me, I have
no idea.
>
> Lex (Digital Dawg) Offer
> 2000 Triumph Lucifer Orange Sprint ST
> 1986 Honda VF1000 F-II




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