Why would you change sprockets? - Kawasaki Versys Forum
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post #1 of 11 (permalink) Old 05-10-2017, 08:11 AM Thread Starter
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Why would you change sprockets?

Why would you change sprockets?

Was reading some of the How-To section and not sure I understand why you would change the sprocket?

For me personally, I feel like 1st gear on my 2015 1000 is really harsh and I wanna be out of it quick. 2nd is meh. 3rd is your girl if you wanna go fast real fast. 6th seems like my RPM is pretty high at 80mph for such a strong bike.

Is changing the sprockets out meant to resolve these kinds of things?
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post #2 of 11 (permalink) Old 05-10-2017, 08:57 AM
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Yes. If you go the correct way you lower the RPMs at a given speed.

On dual sport bikes that are mostly used in the woods people go the opposite way to gain more grunt in lower gears.
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post #3 of 11 (permalink) Old 05-10-2017, 09:28 AM Thread Starter
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Originally Posted by twowheeladdict View Post
Yes. If you go the correct way you lower the RPMs at a given speed.

On dual sport bikes that are mostly used in the woods people go the opposite way to gain more grunt in lower gears.
Could you smooth out 1st gear this way? If so, what would you need to do?
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post #4 of 11 (permalink) Old 05-10-2017, 10:10 AM
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changing your sprockets will change your gear ratio..putting a smaller front and or larger rear sprocket will give you more acceleration putting a larger front sprocket and/or smaller rear sprocket you will gain more top speed

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Silvie=latin for. Of the forest /woods. Fox= Vulpine (also my middle name)

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post #5 of 11 (permalink) Old 05-10-2017, 10:26 AM
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Then there's the best reason for changing a sprocket.............it's worn out.
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post #6 of 11 (permalink) Old 05-10-2017, 10:31 AM
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Changed my rear sprocket from OEM to 43 teeth for two reasons. First, to lower RPM at highway cruising speed and, second to match my speedometer reading more accurately with my GPS (now within 1/2 mile per hour). Those are good enough reasons for me, but that's just me.

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post #7 of 11 (permalink) Old 05-10-2017, 10:45 AM
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Changing sprockets simply changes the shift points. It does not give you more or less power because there is also a 6 speed transmission involved. Unless you ride in unique conditions it is hard to outguess the engineers that designed the bike and carefully selected the optimum final drive ratio. For instance giving the bike taller gearing will also force earlier downshifts when you need to accelerate or climb a hill, and higher RPMS in these situations because of this. There is no magic unicorn solution that gives you more power or better economy through out the speed range, only solutions that can offer an improvement at one speed but at the cost of degraded performance at another speed.

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post #8 of 11 (permalink) Old 05-10-2017, 11:42 AM
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Quote:
Originally Posted by silviefox View Post
changing your sprockets will change your gear ratio..putting a smaller front and or larger rear sprocket will give you more acceleration putting a larger front sprocket and/or smaller rear sprocket you will gain more top speed
NOT quite true...."...a larger front sprocket and/or smaller rear sprocket..." WILL reduce your RPMs at a given speed, but will ALSO PROBABLY reduce your top speed, as your power peak comes now at a speed you can NOT get to (in 6th gear).
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post #9 of 11 (permalink) Old 05-10-2017, 02:14 PM
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Quote:
Originally Posted by fasteddiecopeman View Post
NOT quite true...."...a larger front sprocket and/or smaller rear sprocket..." WILL reduce your RPMs at a given speed, but will ALSO PROBABLY reduce your top speed, as your power peak comes now at a speed you can NOT get to (in 6th gear).
true...
i was kinda just giving a veg term that is true in any gearing .. a small drive gear and/or large final drive gear at the final gear you will get more torque but loose speed from the drive gears point and if you have a larger drive gear and/or smaller final gear you will loose torque(acceleration in alot of ways) but gain speed at the final drive...
fascinating stuff... almost as fascinating as pulleys
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post #10 of 11 (permalink) Old 05-10-2017, 02:58 PM
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I changed to a 16T Front Sprocket on my Versys 650 was quite happy with it that way. On the Versys 1000 I've left it alone i think a 16T on the front would help some but so far I'll just leave it the way it is. Quite a few guys on the Versys 1000 forum have made the change...

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post #11 of 11 (permalink) Old 05-11-2017, 09:12 AM
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Quote:
Originally Posted by JackImpact View Post
Quote:
Originally Posted by twowheeladdict View Post
Yes. If you go the correct way you lower the RPMs at a given speed.

On dual sport bikes that are mostly used in the woods people go the opposite way to gain more grunt in lower gears.
Could you smooth out 1st gear this way? If so, what would you need to do?
I have only gone the other direction on my small displacement dual sports. Quicker acceleration, the ability to loft the front tire over an obstacle, as well as being able to use more gears in the woods so as to not wear out 1st and 2nd gear.
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