Sprocket changes and how it affects mph

[HOAX]

Does anyone have a guide/template on how changing out of your stock gearing will change your mph. For instance on my busa (gen1) I think going up 3 in the rear added 7 false mph (57mph instead of 50). does anyone have a good reference chart? ive now gone down two in the front and up three in the back.

 

[RYC1966]

There is a part, the spedohealer, that corrects your mph based on gear changes + to make the stock parts more accurate.

HealTech Electronics Ltd. - Makers of the SpeedoHealer, GIpro, X-TRE, OBD Tool

I do not know where / if there is a ratio chart where you could back calculate to find the difference

 

[Tufbusa]

Why not go down one in the front and stock 40T in the rear? Would be about the same as you have now.

Down two in the front puts your chain in a bind and robs HP.

I like the 43T rear and stock 17T front. Makes the chain last much longer as a bonus!