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77 gs550 ratios

  • Thread starter Thread starter Hell or high water
  • Start date Start date
H

Hell or high water

Guest
Ok so bumming around on an online gearing calculator has lead me to change the final ratio on my 550. At 70 mph the last ride I was on it was running a cool 6800 rpm. I remember reading on here somewhere that these bikes were built to rev high, but this still seems excessive for extended rides. So to drop some rpm the calculator said if I ran a 17 front and a 40 rear I'd be at around 4K at 70mph. This is a large change front the original 15:50 ratio, so now to the real question. How bad will this kill the performance of the bike? I'm not trying to pull wheelies or run a 0-60 in 2.5 sec. but also don't want to struggle in low rpm. What ratios you guys running out there on these 550s? I see a lot of 1000 and 750/850 changes but not much on the 550. Thanks for any insight guys.
 
Simple swap is to move up one tooth on the front sprocket. This will reduce rpm by a noticeable amount. If you go higher still the bike will be hard to launch without a lot more clutch slippage and the acceleration will be sluggish.
 
Thanks guys! Sorry about the old thread, I looked but only found larger bike changes.
 
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