I'm considering going 1 tooth lower on the front sprocket of my 2003 Z1000. I know the speedometer measures velocity via the countershaft, thus going to a smaller front sprocket will make the speedo read higher than actual. But how does this affect the odometer? Will it be inaccurate as well? Will it register more miles than I'm actually traveling? I know a speedo healer will correct all this but I probably will not get one unless the odometer is affected by the sprocket change as well.