Sprockets.

[USARMY]

Okay folks, I'm at it again I want too get more jump from the start. Then once I'm cruising at 80 mph I want too be able too get a quicker boost by the turning of the throttle slightly. Any suggestions on sprockets for front and back.

 

[USARMY]

In other words do I need too go smaller or bigger on sprockets. Rite now I have a 14 up front 43 on the rear

 

[BusaBret]

That 14 has to be tough on the chain.

 

[jphilipson]

I dunno, I just downshift - *shrugs*

 

[sixpack577]

If you have a gen1 stock sprockets are 17/40. 14/43 has probably made the bike really quick out of the hole and has the rpms pretty high at 60 to 70mph. I'de go back up to a 16 on the front, that would give you more top end and more of the "take off" speed at 80mph+ you're looking for.

 

[StromBusa]

+1, 14 sounds too tight for the front, look in to some stunting setups ~60 in the back ??? Not exactly sure how to interpret your question, do you want top end speed or quarter mile time? Low gears run out of steam, high gears can bog on the start, Hayabusa stock gearing is all around balance.