Gearing Change &  Speedo Error

[McyMike]

How much speedo error do I have when takiing the the counter sprocket down a tooth??

[CoolBUSA5454]

It'll be way off, have to get a yellow box to fix it.

[FLCN72]

This site will calculate the gear ratios. You can figure the speedo error from stock with a little math.



The stock speedo is off by about 7% already.

[MET]

Either that are you can always go with 19/41 gearing and be right on the money. You may not have the HP to pull it, but you will be right on the money.

FLCN72 is correct the speedo error is 7 percent off. Actuall a little more then 7 ercent.

[McyMike]

Shoooot...so the 170 + I've shown on the speedo is only really about 160....time for a conversion box. thanks for the advice!

[Got-Busa?]

I knew it was off the first time I rode a BUSA!

Heck.....I peg the 185 before I even shift into 6th gear!

It's quick but it isn't that quick!

[quadb0y]

Where can I get one of these yellow boxes to compensate for gearing changes ? I'm looking to go down to 16T front & keep stock 40T rear.

[badassbusa]

you can find it at www.schnitzracing.com. they have the best price i ever found around & good service too. just click on products & then choose hayabusa stuff.

[quadb0y]

Thank u !!
Also found one at www.speedohealer.com, seems more adjustable & a bit cheaper .. check it out !