Chains & Sprockets - Page 3 - ZX6R Forum
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post #31 of 270 Old 09-22-2012, 05:40 PM
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it also messes up ur milage, and fuel economy, smaller sprocets, better gas, big sprockets, poor gas, my light came on at 100 miles

ROLL OUT

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post #32 of 270 Old 09-24-2012, 10:28 AM
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Sprocket and chain question

This is my first reply/ post as I just joined. I have an 08 zx6r. I just changed over to a 15/45 Supersprox front and rear sprocket set with a RK 520, 112 link, x-ring chain from the OEM chain and OEM 16/43 sprocket set. The set was purchased from Supersprox as a set. I also installed a SpeedoHealer v4 to correct the speedometer error.

The install went as planned. Everything is torqued per spec, the axle is plumb on both sides so the chain is aligned and the chain tension was checked in-spec. With the sprocket change the engine RPM is higher as is normal due to the gear change. The bike rides fine however there is now pronounced chain noise when the rear wheel is turning. This occurs under power or by just turning the rear wheel by hand when it is up on the rear stand. It is coming from the front sprocket as the chain wraps around it. There is no binding or noticeable misalignment between the chain and the front sprocket. I loosened everything up this w/e and pulled the chain off the rear wheel and veriifed that the front sprocket is not the cause of the noise: it spins freely and noiselessly by hand. There was no noticeable or abnormal wear on the teeth that would indicate misalignment. I put everything back together and tried adjusting the slack on the chain both tighter and looser and even skewed the axle alignment to see if that would quiet it down. In conclusion the bike is back to when I did the changeout and the chain whirring/noise is still present.

I don't know if this is normal with a sproket change due to the front sprocket turning faster or what. All other indicators are normal, no driveline issues other than the noticeable, chain whirring noise that wasn't there with the OEM set-up. Is this a big deal or just something new to get used to? Thanks for the help...
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post #33 of 270 Old 09-24-2012, 01:11 PM
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Originally Posted by PowerGroove View Post
by decreasing the number of teeth of the front sprocket and/or increasing the rear you are adding torque. You will run at higher RPM's making you closer to the power band most of the time. You lose top speed but gain quickness.

To give you an idea... stunt bikes need to have a lot of torque to get be able to quickly snap the front wheel off of the ground.... so on most all stunt bikes you'll see a HUGE rear sprocket.
Ok, so then how do you know how many links to get? Is there some kind of calculator?
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post #34 of 270 Old 09-24-2012, 01:13 PM
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Ok, so then how do you know how many links to get? Is there some kind of calculator?
Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator
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post #35 of 270 Old 09-24-2012, 01:20 PM
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Thanks corvus... Im not sure what I would ever do without you?
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post #36 of 270 Old 09-24-2012, 01:23 PM
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Thanks corvus... Im not sure what I would ever do without you?
Buy the wrong shit? Hahaha
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post #37 of 270 Old 09-24-2012, 01:24 PM
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Holy crap, how the hell do you work that thing?
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post #38 of 270 Old 09-24-2012, 01:27 PM
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Holy crap, how the hell do you work that thing?
Bike model goes in top dropdowns. Make sure you select N I N J A for model. Then get your year and hit load gearing. That will load up all of your OEM infoitch, teeth, and links, etc. You can then play with current or custom settings to see what effect changing sprockets and stuff would have on everything. Pretty comprehensive tool.
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post #39 of 270 Old 09-24-2012, 01:34 PM
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Bike model goes in top dropdowns. Make sure you select N I N J A for model. Then get your year and hit load gearing. That will load up all of your OEM infoitch, teeth, and links, etc. You can then play with current or custom settings to see what effect changing sprockets and stuff would have on everything. Pretty comprehensive tool.
Ahhh, thats why, i put zx and nothing happened.
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post #40 of 270 Old 09-24-2012, 01:38 PM
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Ok, so heres another question. If i change to a 520 instead of a 525 will that change the number of links?
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post #41 of 270 Old 09-24-2012, 01:43 PM
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Ok, so heres another question. If i change to a 520 instead of a 525 will that change the number of links?
Don't. 520, 525, and 530 indicates pitch. You don't need to change that or move up from a 520 for street 600cc applications.

But, to answer your question, no I don't think it would change the number of links. You do have to match the pitch between the chain and front and rear sprocket also.
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post #42 of 270 Old 09-24-2012, 01:58 PM
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In the site you gave me it says the pitch is .625. Shouldnt it say .525?
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post #43 of 270 Old 09-24-2012, 05:09 PM
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Don't. 520, 525, and 530 indicates pitch. You don't need to change that or move up from a 520 for street 600cc applications.

But, to answer your question, no I don't think it would change the number of links. You do have to match the pitch between the chain and front and rear sprocket also.
I might be dumb asking but isn't 520,525,530 the thickness of the chain?

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post #44 of 270 Old 09-24-2012, 05:18 PM
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I might be dumb asking but isn't 520,525,530 the thickness of the chain?
Yeah, the tensile strength they can handle also. 520 thinner and less strength, 530 thicker more tensile strength
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post #45 of 270 Old 09-24-2012, 05:19 PM
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ok thanks bud!

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