What is the best teeth combination for the 08 1krr to maintain acceleration and maximize topspeed?

 

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Pick your top speed you can live with and go from there.

 

to maintain acceleration and maximize top speed? stock. with that being said, most people never even scratch the surface of the full potential of their bikes, so for a beginner, i would say that your best bet would be to leave it stock and learn how to REALLY make the bike perform first. then, as you get more confidence in your own riding abilities, start from the ground up. better tires, better brakes, upgrade suspension, shed weight. most people look to make their bikes as bad as possible without recognizing the most common performance inhibitor... the rider. work on yourself first. take some track days, do some REAL riding. then when it is all said and done and you havent poured thousands into your bike trying to perfect what a lot of rich engineers that are a lot smarter than you are have already done and you will truly understand just how powerful your bike really is, you will know that you dont need -1/+2 for the street. you will know that there is no better feeling than carving up a double-apex at a full lean and hammering on it in the straight. but if you must mess with perfection, that combination usually does the trick. down one in the front and up two in the rear. IMHO the only times that you should mess with gearing is A) to maximize performance for a certain track, and B) to pull monster slow-speed wheelies. in which case, you will want to get a rear sprocket about the size of a large pizza.