Would changing the gearing effect the speedo reading? Sensor's on the gearbox but is it calibrated for standard gearing? Had mine at an indicated top speed which -10% seems right enough. Now running 15/48 on my 2001 CBR600FS1 and my god, what a difference.

 

Only way the speedo will be correct is to use a 'yellow box' or similar product when you change gearing. Exception is yee olde timey models that read off the front wheel.[8D]

 

Cheers dude, where can I source one of these and will they be compatable with uk bikes? I'd imagine so since switchable between mph/kph. Too many speed traps on my way to work to risk having seriously innaccurate readings but I think its reading high.

 

Try a SpeedoHealer