Just out of curiosity. I noticed that the GT250R and GT650R uses the same speedometer sensor assembly (Part # 34860HP9201). If this is true and the sensor is not adjustable (to suit the different tire size/ diameter - The GT250 uses 110/70-17 tires whereas the GT650 uses 120/60-17 tires), does this mean that one of the model has false speed indication? Not that there's a lot of difference between using 110 and 120, but just wondering.