Speedo accuracy with 16t sprocket?

[BOKMAN]

Just installed a 16 tooth on the front with the stock 40 on the rear to get a little more roll-on grunt. How much will this screw up the speedo? Will the bike be traveling faster or slower than the speedo reading?

 

[hooken203]

I cant tell you what percentage your speedo will be off.Your speedo will read faster that you are going. As in it will read 60 when your going 50.I use the yellow box on mine and thats the gear I run.

 

[nitrousjunkie]

What he ^ said.

 

[hydrabusa]

I cant tell you what percentage your speedo will be off.Your speedo will read faster that you are going. As in it will read 60 when your going 50.I use the yellow box on mine and thats the gear I run.

+1

 

[Tufbusa]

Your speedo will be fast by about 8%!

When you are doing 50 your speedo will be reading 54 or when you are doing 100 your speedo will be reading 108.