Sprocket Sizes HELP

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12 Feb 2011 08:12 #430181 by amele7
Sprocket Sizes HELP was created by amele7
Building a KZ1000 street/stip bike and need suggestions on sprocket sizes. Going with 530 chain, but not sure what gear ratio would be good. Any suggestions???
'79 KZ650B3
'81 KZ1000J

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12 Feb 2011 09:19 #430189 by MFolks
Replied by MFolks on topic Sprocket Sizes HELP
I use www.gearingcommander.com when changing sprocket ratio's.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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12 Feb 2011 11:40 #430220 by Patton
Replied by Patton on topic Sprocket Sizes HELP
Some more good info:

Click > www.z1enterprises.com/reference/chain630to530.aspx

Good Fortune! :)
1973 Z1
KZ900 LTD

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12 Feb 2011 11:49 #430221 by big mike
Replied by big mike on topic Sprocket Sizes HELP
well on my drag bikes i run a 15 42 with the stock trans gears rear tire is a 26 in tall tier also

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12 Feb 2011 12:32 #430223 by dblhdr
Replied by dblhdr on topic Sprocket Sizes HELP
This is some info I got from "Bakes" at Z1 Enterprises, Inc. when I converted to a 530 chain.

17 tooth front - part number 249277
40 tooth rear - part number 249634
112 links of good quality 530 O ring or XW ring chain!
This yields a 2.35 drive ratio which is as close as you can get to stock

530 (JTF513 series) 17T front sprocket
EM95-47317

OEM: 13144-1009

17T Front Sprocket for 530 chain. Fits Kawasaki KZ650 (77-80), KZ750B KZ750G ZX750F KZ750H ZX750J ZX750K ZX750L ZX750M ZX900B.
Fits Z1, KZ900 & KZ1000 when converting to 530 chain.

40T Steel Rear Sprocket for 530 chain. 6-bolt with 80mm center, 52mm between adjacent bolt hole centers

Fits Kawasaki KZ550C KZ550D KZ550H KZ650C KZ650D KZ650E KZ750M KZ750G KZ750B

Fits the following for 530 chain conversion: Kawasaki KZ650H (81-83) KZ700 KZ750E (80-83) KZ750R KZ750H KZ750L ZX750 (80-85) KZ1000 (77-01) KZ1100 ZX1100 (83-84)

LA530XSOZ1-112 RK
530 Chain - RK 112 link 'X' Ring
1981 KZ1000 Police Special coverted for civilian use with passenger seat, custom luggage rack, and paint. Daily rider.
2006 Harley Davidson Road King FLHR1

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12 Feb 2011 14:18 #430240 by TexasKZ
Replied by TexasKZ on topic Sprocket Sizes HELP
The ratio you need depends on a host of variables.

Stock trans gears?
Power band of your particular engine?
Type of frame used?
Rear tire size and type?
Rider weight?
1/4 or 1/8 mile?
et cetera
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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12 Feb 2011 14:45 #430247 by dejavoodo41
Replied by dejavoodo41 on topic Sprocket Sizes HELP
I'm running a 17-42 setup and that puts me at 5k RPM @70 MPH. I'm actually thinking about going down in the back since I ride the freeway pretty regularly
1977 KZ1000A With 1980 KZ1000A MKII engine, Wiseco 1105 kit, Dyna S Ignition, 3 Ohm Dyna Coils, Cams, Mikuni RS34 Carbs, Vance and Hines Pro Pipe with Comp Baffle

New Smyrna Beach, FL

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12 Feb 2011 14:46 #430248 by Stu Pidasole
Replied by Stu Pidasole on topic Sprocket Sizes HELP
im ganna use 17-41 with 530.

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13 Feb 2011 15:33 #430483 by amele7
Replied by amele7 on topic Sprocket Sizes HELP
unfortunately I dont know anything about the motor...the guy I bought the bike from didn't know much other than he thought the guy who originally built it made the motor a 1075 but i dont know at this point.

Going to run 190 shinko rear tire 17in rim
I weight about 180 and would run the bike in the 1/4 mile...mostly for fun on test/tune night and still ride it on the street.

a friend of mine just gave me a 16 tooth front so I may go with a 39 rear thats roughly about the same as 17-41

thanks for all the info
'79 KZ650B3
'81 KZ1000J

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