Sprocket resourse

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Sprocket resourse

Postby saxondog » Wed Apr 20, 2011 1:27 am

I had asked and received information on available sprockets for our bikes,the reply as follows.




Hi Blake,


The stock rear sprocket for your year and model is our part number 4093. This as you know is in 630 chain. Stock tooth size was 46 teeth. A 530 chain rear sprocket that will have the same diameter would be 54 or 55 tooth size. (the 54 is smaller and the 55 is just larger) Our part number 4076 is the same rear sprocket as our 4093 but is in 530 chain size. This sprocket is available in 28 through 61 tooth sizes.
see the link below:


http://shop.pbisprockets.com/product.sc?productId=274


Also as a note, the stock 15T 630 C/S sprocket is the same as a 17 or 18 tooth C/S in 530. see link to our 776 part that fits your bike in 530 chain:


http://shop.pbisprockets.com/product.sc ... egoryId=28


I hope this helps, and good luck with your gearing.

Thanks for visiting PBIsprockets.com.
http://www.pbisprockets.com/

Best regards,

Chris Products Inc. & PBI Sprockets USA
6110 NW Croeni Rd. Suite 150
Hillsboro Or. 97124
mike@chrisproducts.com
tel: 503-645-6500
fax: 503-645-8500
Every day I wake up breathing is a good day. Saxondog
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Re: Sprocket resourse

Postby saxondog » Wed Apr 20, 2011 1:34 am

I have converted to 530 but in the same ratio 15 to 43. Lost torque which I have not minded to much being older and not needing the wheelies and fast quarter mile speed. But the options available from this company does open other ratios and perhaps a better middle ground.

PBI also responded very quickly and are aware of the GPZ and the potential this bike has for higher top end speeds which was part of my question to them. either way any member wishes to go I believe these company to be capable of producing the right sprockets for any situation.

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Re: Sprocket resourse

Postby zedturbo » Mon Jan 09, 2012 7:18 pm

Hmmmm so stock gearing in 530 is 17:55! :shock: Thats a pretty big rear sprocket.. :razz: I'm using a 17th 530 for my project so I'll probably try 45-46th then..
I think i've seen a gearing calculator somewhere on the site..
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Re: Sprocket resourse

Postby Lorcan » Mon Jan 09, 2012 7:22 pm

First to 200mph (2006) and still the fastest (211mph)
Quickest turbo-only 8.69 @ 162mph
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Re: Sprocket resourse

Postby kawasakiman542 » Mon Jan 09, 2012 10:04 pm

I'm running 17/49 -530 drive chain and a 180/55/zr17 tire and it seems to me that it is lower gearing than stock,is that possible?
I've tried growing up, it just doesn't work for me, so I'll go on enjoying my childhood.
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Re: Sprocket resourse

Postby GregCampbell » Wed Jan 11, 2012 5:51 pm

Thank you - an actual part number is helpful!
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Re: Sprocket resourse

Postby EJS » Wed Jan 11, 2012 7:12 pm

kawasakiman542 wrote:I'm running 17/49 -530 drive chain and a 180/55/zr17 tire and it seems to me that it is lower gearing than stock,is that possible?


Teoretical max speed is almost the same. :victory :victory
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Re: Sprocket resourse

Postby kawasakiman542 » Wed Jan 11, 2012 9:34 pm

EJS wrote:
kawasakiman542 wrote:I'm running 17/49 -530 drive chain and a 180/55/zr17 tire and it seems to me that it is lower gearing than stock,is that possible?


Teoretical max speed is almost the same. :victory :victory

Thanks for the info... I'm running 120/70 /zr17 up front and using the stock 750 turbo speedometer is there any way to correct the reading? I see on your chart a 10% difference between stock and modified , would it be the same with the tire I'm using?
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Re: Sprocket resourse

Postby Lorcan » Wed Jan 11, 2012 9:52 pm

The stock speedo is 10% over-optimistic anyway, when I fitted a 17" front it corrected it! :rofl:
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Re: Sprocket resourse

Postby kawasakiman542 » Wed Jan 11, 2012 10:47 pm

Ok, I think it makes sense to me now... It seems like the gearing is lower because the speedo is reading slower at any given rpm, so it is just gives an illusion of the gearing being lower.
I've tried growing up, it just doesn't work for me, so I'll go on enjoying my childhood.
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Re: Sprocket resourse

Postby Chris G » Thu Jan 19, 2012 2:10 pm

Lorcan wrote:http://www.750turbo.com/530_chain.htm


Click on the info (i) button on tyre slip :rofl:

EJ - thats a sexy calculator ....
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Re: Sprocket resourse

Postby ThePadd » Fri Jan 20, 2012 1:32 pm

Yes, I agree with Lorc, the stock speedo is pretty much 10% over-optimistic. Remember we have speedos on bikes crossing finishing lines and we know what the speedo says and the speed trap!

Also, remember that a 530 pitch chain is shorter than a 630 pitch chain so if you dont increase the number of teeth of the front sprocket especially, you will have the chain rubbing along the top of the swing-arm. A 40 inch sprocket in a 530 will have a smaller diameter than a 630.
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Re: Sprocket resourse

Postby JezZedexE1 » Fri Jan 20, 2012 2:22 pm

we know what the speedo says


Jeez, I knew I was doing something wrong. :roll: I don't look at my speed. I'm just hanging on for dear life watching the end of the strip. :gay Either that or it's too close to my nose to read without my glasses. :shock:
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Re: Sprocket resourse

Postby Lorcan » Fri Jan 20, 2012 8:57 pm

Padd's talking about his NA model Jez. It's slow enough to read the speedo.

Or a book.

:rofl:
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Re: Sprocket resourse

Postby Witchita Linemen » Sun Jan 22, 2012 6:50 pm

I'm running a 17/52 520 chain with 190/50 x 17 rear. Superb low end accelleration, but rpm's feel unusually high for freeway droning.
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