Things to know:
(A) Stock for your bike is 15/47 for a 98+ Kat 600, 15/45 or 15/47 for 98+ Kat 750 (most 750's were 15/45 stock it would seem).
(B) Anything that makes the chain go around a tighter circle wears the chain faster. Thus, it makes more sense to go up in the back than down in the front, if you're replacing both anyway (i.e. - if the difference in cost isn't a major issue). Going up in the back will require a longer chain -- 1 extra link of length per extra tooth at the rear.
(C) The pre-made tables for amount of change and notes about the install can be found on my website here:
Katana - GSX600F all (& some GSX750F) 47-tooth basis sprocket tables
AND
Suzuki Katana GSX750F 45-tooth basis sprocket tables
(D) Anything that changes the relationship between the output sprocket of the tranny and the actual ground speed affects the speedo on the 98+ models, including tire size & sidewall height, sprocket tooth counts. There are two electronic correction kits on the market (see my webpage above for links to the YellowBox and the SpeedoHealer); there is a third solution that's cheaper but not as flexible -- printing a new decal for the speedo dial to correct for the factor.
(E) The bike comes from the factory about 9% off at the speedo, given the stock tires (partially a legal requirement). Some brands of tires tend to correct that (Metzeler Z6's in the stock 150/70ZR17 bring it back to under 1% off after initial tire growth; this partially because that tire measures out to be 159/61ZR17 after mounting & tire-growth on a 4.5" Kat rim).
Cheers,
=-= The CyberPoet
(A) Stock for your bike is 15/47 for a 98+ Kat 600, 15/45 or 15/47 for 98+ Kat 750 (most 750's were 15/45 stock it would seem).
(B) Anything that makes the chain go around a tighter circle wears the chain faster. Thus, it makes more sense to go up in the back than down in the front, if you're replacing both anyway (i.e. - if the difference in cost isn't a major issue). Going up in the back will require a longer chain -- 1 extra link of length per extra tooth at the rear.
(C) The pre-made tables for amount of change and notes about the install can be found on my website here:
Katana - GSX600F all (& some GSX750F) 47-tooth basis sprocket tables
AND
Suzuki Katana GSX750F 45-tooth basis sprocket tables
(D) Anything that changes the relationship between the output sprocket of the tranny and the actual ground speed affects the speedo on the 98+ models, including tire size & sidewall height, sprocket tooth counts. There are two electronic correction kits on the market (see my webpage above for links to the YellowBox and the SpeedoHealer); there is a third solution that's cheaper but not as flexible -- printing a new decal for the speedo dial to correct for the factor.
(E) The bike comes from the factory about 9% off at the speedo, given the stock tires (partially a legal requirement). Some brands of tires tend to correct that (Metzeler Z6's in the stock 150/70ZR17 bring it back to under 1% off after initial tire growth; this partially because that tire measures out to be 159/61ZR17 after mounting & tire-growth on a 4.5" Kat rim).
Cheers,
=-= The CyberPoet
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