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Discussion Starter #1
I have an 03 vlx 600 that I want to reduce the rpm on the highway. I saw a sprocket kit changing to a 16 tooth front and 40 tooth rear. What kind of difference will I see in drivability around town? I haven't seen anyone discussing how it would change acceleration really (I know it will decrease but how noticeably). Is there an estimate on how many rpm you reduce at say, 65? Any help would be greatly appreciated.
 

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before i bought my 750 i was looking at a 600 doing my research prior to purchase i realized this would be a concern for myself. i did find the information your requesting online but i don't remember where. specific kits that are made for the 600 are slim so sprocket options were slim. if i recall it wasn't a drastic rpm change but enough to fight the high rpms of the highway. ive never ridden the 600 but watched a couple videos and it seemed pretty snappy for around town so at worse you might have to give it a bit more leaving a stop.
 

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Discussion Starter #3
That's kind of what I'm finding. I got the 600 because I was able to pick it up for $300, it needed the carb and tank cleaned, fuel line replaced but otherwise was in good order. I didn't have the time so paid a buddy to get it running. $500 in and I had a running motorcycle. I've done about $200 in cosmetic stuff and replacing the chain.
 

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For what it’s worth, these engines can turn higher rpm for hundreds of miles on end without issues. The 600 is a pretty well balanced engine, has to be made well to spin up to 8,000rpm and hold together for tens of thousands of miles.

Do you want to reduce RPM just because you feel it’s too high cruising? That’s fine, but keep in mind that the 600 doesn’t really have enough torque to lug around under 3500rpm in top gear, it’s meant to be pushed higher.
 

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Discussion Starter #5
For longer rides the vibration can be a bit much. I'm not wanting to drop it way down low just reduce some of the higher end vibration.
I've seen that the 40 or 41 tooth reduce just enough to stave off some of those issues without really causing driveability problems. I will eventually look into a bigger bike but for now this seems like a good compromise.
 
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