Re: 929 - Optimum Gearing Ratio - 190/55 ZR17
What year/model blade do you have? One important thing to remember is that you have to either correct the speedometer or mentally compensate for the difference constantly. Any time you change the gearing, unless it is front-speed-read, you will change your speedo readout. Since it is a blade, I would assume it has a fair bit of power to begin with (my '02 954 certainly isn't lacking), so a gearing change is completely optional. I left my gearing alone when I replaced my chain and sprockets.
That being said, if you want faster acceleration I would go with one or two teeth up in the rear. If you are looking to really get snappy acceleration and pull it up easily, one down up front and two up in the rear (equal to about 5 up in the rear) will allow you to use the stock chain length (usually) and make for a splendidly more-torquey feel.
I don't think that going from a 50 ratio to a 55 ratio height tyre would require a gearing change by default as it is only a couple cm difference in tyre height.
/**Serenity**\ 2002 Honda CBR954RR Fireblade
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