Question from new Monster Rider.

[minnesotamonster]

No it will not affect the the speedo reading. I believe it is taken from the front wheel rotation. 

[Greg]

No it will not affect the the speedo reading. I believe it is taken from the front wheel rotation. 

The sensor is on the rear wheel

[NFG]

In either case, front or rear, the sensor measures wheel rotation.  Changing the sprockets won't affect the measurement of wheel rotation speed. 

[scduc]

I also have an 08' S2R. As far as the RPM's go, at crusing speed of 60mph, you will not want to be in 6th. I find that traffic in my area (on freeway) is usually about 70 to 80. Where 6th comes into play. You will need to keep it in the 4500 to 5000rpm zone to keep her happy. And as for the speedo, well I figure that after 65, she starts to get a little worse as far as accuracy. My guesstimate would be if it reads 100, you are most likely doing about 90 and by the time you hit 120, most likey 105.