Just wondering how the speedometer reads on the SF model. I know the S shows about 10% higher than actual. What about the SF? Is that instrument cluster calibrated any differently?

 

With the stock tires it is probably off about the same amount. I think 109kmh indicated is 100on my gps

 

Hmmm that's interesting. That means it actually does have a different internal calibration than the S model to have the same 10% error with the 17" wheels. I think the difference in tire diameters between the S and SF is about 20% (approx 588mm vs 704mm). So if you were to put the 21" rim on your bike, your speedo would be 10% off in the other direction... indicating 10% LESS than actual.

How about your odometer? Is it true or does it have some error also?