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Oh CRAP! Zx6r 530 Rear Sprocket Nowhere....
- Old Man Rock
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10 May 2008 08:27 #212541
by Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Oh CRAP! Zx6r 530 Rear Sprocket Nowhere.... was created by Old Man Rock
Hey all,
While thinking about this I just realized a possible HUGE screw up in my project.
KZ900 swingarm converted to 2003/2004 ZX6rr. (5.5" rim w/180mm tire)
KZ900 is designed around a 630 chain/sprockets.
ZX6rr is designed for a 520 chain/sprocket.
Here's the "Oh CRAP" I just realized....
KZ Offset Counter sprockets are available in 530 or 630 sizes. The ZX6r/rr rear sprockets are only available in 520 sizes.
Preference would be due to chain width and clearance issues is to have a 520 offset counter sprocket. Tensile strength is a concern but with new chain technologies, a 520 chain now has over 9000 lbs strength.
damn it, damn it, damn it, damn it, damn it, damn it:woohoo:
Anyone have any ideas other than get drunk?
NOTE: I have already e-mailed Kosman and Precison regarding a custom 520 counter sprocket.
Anyone out there found a rear 530 sprocket that would fit a ZX6r?
Old Man Rock
While thinking about this I just realized a possible HUGE screw up in my project.
KZ900 swingarm converted to 2003/2004 ZX6rr. (5.5" rim w/180mm tire)
KZ900 is designed around a 630 chain/sprockets.
ZX6rr is designed for a 520 chain/sprocket.
Here's the "Oh CRAP" I just realized....
KZ Offset Counter sprockets are available in 530 or 630 sizes. The ZX6r/rr rear sprockets are only available in 520 sizes.
Preference would be due to chain width and clearance issues is to have a 520 offset counter sprocket. Tensile strength is a concern but with new chain technologies, a 520 chain now has over 9000 lbs strength.
damn it, damn it, damn it, damn it, damn it, damn it:woohoo:
Anyone have any ideas other than get drunk?
NOTE: I have already e-mailed Kosman and Precison regarding a custom 520 counter sprocket.
Anyone out there found a rear 530 sprocket that would fit a ZX6r?
Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
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- steell
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10 May 2008 08:55 - 10 May 2008 09:22 #212545
by steell
KD9JUR
Replied by steell on topic Oh CRAP! Zx6r 530 Rear Sprocket Nowhere....
www.sprocketspecialists.com/
Download their catalog and look at the sprocket specs for the year and model bike that your rear wheel came off of, then look for a sprocket with the desired chain pitch that matches the specs.
They are the only place that supplies sprockets for my rear Morris Mag that I have found.
Around $60-$70 though
I just looked and they don't list the sprocket specs any longer
You'll have to call and tell them you have a 2004 ZX6 RR and you need a 530 sprocket, if they don't have one they'll make it for you.
This is funny
Just on a whim I checked the specs for a 76-79 KZ750 twin sprocket, and guess what? The specs (bolt hole diameter, bolt circle diameter, center hole diameter) are exactly the same as a ZX6 RR, and the 76-79 KZ750 twin is a 530!
I checked the specs at JT sprockets, at least they still list them.
Problem solved
Download their catalog and look at the sprocket specs for the year and model bike that your rear wheel came off of, then look for a sprocket with the desired chain pitch that matches the specs.
They are the only place that supplies sprockets for my rear Morris Mag that I have found.
Around $60-$70 though
I just looked and they don't list the sprocket specs any longer
You'll have to call and tell them you have a 2004 ZX6 RR and you need a 530 sprocket, if they don't have one they'll make it for you.
This is funny
Just on a whim I checked the specs for a 76-79 KZ750 twin sprocket, and guess what? The specs (bolt hole diameter, bolt circle diameter, center hole diameter) are exactly the same as a ZX6 RR, and the 76-79 KZ750 twin is a 530!
I checked the specs at JT sprockets, at least they still list them.
Problem solved
KD9JUR
Last edit: 10 May 2008 09:22 by steell.
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- Old Man Rock
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10 May 2008 15:53 - 10 May 2008 15:55 #212594
by Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Replied by Old Man Rock on topic Oh CRAP! Zx6r 530 Rear Sprocket Nowhere....
Hey Steell,
Thanks for the link, I've sent them an e-mail inquiry. As far as I can tell, they only make rear sprockets, couldn't find NON OEM counter sprockets on their site. Hopefully I'm wrong.
$60 - $70 for a rear 530 sprocket would be cheap...
I'd be good with that price.
Same time, I have other inquiries out for Kosman and Precision to see If I can get a KZ900 520 counter sprocket fabricated. Outside of tensile strength concerns that I feel the new chain technologies would be fine, this would shave a much needed 1/8" clearance.
Are you serious????
Oh well, have to wait and see otherwise I'm screwed! :blink:
Thanks again,
Old Man Rock
Thanks for the link, I've sent them an e-mail inquiry. As far as I can tell, they only make rear sprockets, couldn't find NON OEM counter sprockets on their site. Hopefully I'm wrong.
$60 - $70 for a rear 530 sprocket would be cheap...
I'd be good with that price.
Same time, I have other inquiries out for Kosman and Precision to see If I can get a KZ900 520 counter sprocket fabricated. Outside of tensile strength concerns that I feel the new chain technologies would be fine, this would shave a much needed 1/8" clearance.
The specs (bolt hole diameter, bolt circle diameter, center hole diameter) are exactly the same as a ZX6 RR, and the 76-79 KZ750 twin is a 530!
Are you serious????
Oh well, have to wait and see otherwise I'm screwed! :blink:
Thanks again,
Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Last edit: 10 May 2008 15:55 by Old Man Rock.
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- steell
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10 May 2008 17:16 - 10 May 2008 17:27 #212609
by steell
KD9JUR
Replied by steell on topic Oh CRAP! Zx6r 530 Rear Sprocket Nowhere....
From the JT Sprockets catalog.
ZX6RR 03-04
KZ750 twin 76-79
Might have to grind those two notches on the ID of the center hole, rat tail file or a dremel would make short work of that though. I have several worn out 750 twin sprockets, pay for shipping and I'll send you one so you can try it out before spending the $40 or so for a new one.
Sprocket Specialist will make you a custom rear sprocket, for a front sprocket if you take a 900/1000 630 sprocket and an appropriately sized 520 sprocket to your local machine shop, they should be able to cut and weld the two together. Might be a little pricey though.
ZX6RR 03-04
KZ750 twin 76-79
Might have to grind those two notches on the ID of the center hole, rat tail file or a dremel would make short work of that though. I have several worn out 750 twin sprockets, pay for shipping and I'll send you one so you can try it out before spending the $40 or so for a new one.
Sprocket Specialist will make you a custom rear sprocket, for a front sprocket if you take a 900/1000 630 sprocket and an appropriately sized 520 sprocket to your local machine shop, they should be able to cut and weld the two together. Might be a little pricey though.
KD9JUR
Last edit: 10 May 2008 17:27 by steell.
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- Old Man Rock
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11 May 2008 08:15 #212767
by Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Replied by Old Man Rock on topic Oh CRAP! Zx6r 530 Rear Sprocket Nowhere....
Steell,
KZ750 twin 76-79... For $40 (530) I'd give this a try...
I Still want to see if a 520 counter sprocket is an option for I could use the 1/8" shaving.
Excellent & Thanks,
Old Man Rock
KZ750 twin 76-79... For $40 (530) I'd give this a try...
I Still want to see if a 520 counter sprocket is an option for I could use the 1/8" shaving.
Excellent & Thanks,
Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Please Log in or Create an account to join the conversation.