I know these bikes have close ratio gearing but are geared rather high. Just how much does changing the gearing help these bikes in the quickness department?

They are kinda sluggish to get going until of course you hit the upper revs. Would like to put on a larger rear sprocket to help out.

So I ask all of you that have done this, what size would be the best for better acceleration yet still have fairly decent gas mileage at highway speeds?

 

For getting quicker -1/+3 front and rear respectively seems to be a common number. Honestly I went the other direction, I just bumped my front sprocket up one tooth and I dig it. Seems pretty quick still and I get 46mpg on the highway. I'm sure I'll go back to stock 17/42 at some point too.

 

16/44 or 16/45 - unless you pull the clutch going downhill the mpg won't magically stay the same tho' and a stock speedo will go seriously out of whack

 

As Sprock said 16/44. I did the 16/44 on my old 88 Hurricane 1000. it was night and day difference in quickness. Front wheel wanted to come up on the 1st to 2nd shift When I had the stock gearing 17/42 it would barely pull on a 2010 R6. With 16/44 it would eat the same R6. Gas mileage did drop. I may change the gearing on my 94 CBR 1000 . Not sure yet as I really like the decent mileage. But I don't drive her to work that much so if I change the gearing its not that big of a deal. Dont forget to get a good new chain. I used the RK gold chain with a rivet master link, about 120 bucks but worth it and the peace of mind when you are hammering the throttle.

Nice looking 93 by the way.