02 zx9 question

[KEEFFIE]

anyone know if i change my sprokets to a differnt ratio do i need to install a speedohealer? or something along those lines.

[BSSJZX9R]

yes, in orrder for the speedo to be correct

[KEEFFIE]

where is the best place to buy?

[fast911ray]

I've gone two smaller at the rear on my 99..that brings the speed to less than 3% optimistic error at the ton [ GPS verified]...completey acceptable I'd say.

[KEEFFIE]

I Went -1 In The Front And +4 In The Rear. I Hade The Brand New Set Laying Around So I Figured I Would Use The If Not Then I Would Of Only Went +2 In The Rear. So Now My Gearing Is 15 In The Front And 44 In The Rear.