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Best gearing ratio 25 Jan 2020 15:40 #817896

  • Bowserpup32
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What up guys. I’m replacing both my rear sprocket and front sprocket. Buying new since old ones are chewed up. Looking for a little more off the line vs at the high end. Any feedback here would be great. Ideas and or suggestions needed. 1978 kz1000a2. Basically stock right now.

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Best gearing ratio 25 Jan 2020 16:47 #817897

  • Scirocco
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What chain Setup do you want to go? 630 or 530?

For a 630 chain 15/35 urban area or 15/33 for long highway rides.

kzrider.com/forum/5-chassis/612176-gear-ratios-for-530-chains

or calculate your own gear Ratio

www.rbracing-rsr.com/chainlength.html

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Last edit: by Scirocco.

Best gearing ratio 25 Jan 2020 17:11 #817898

  • 650ed
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If you buy new sprockets buy a new chain. An old chain will rather quickly wear new sprockets, and old sprockets will quickly wear out a new chain. That's why chain and sprockets should be replaced as a set. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Best gearing ratio 25 Jan 2020 17:58 #817902

  • Street Fighter LTD
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All sound advise
My 78 LTD came geared 15 / 33 Remember it has a 16 inch rear wheel
Most 18 inch wheel bikes I have seen commonly came 15 / 35
Avoid going with a 14 tooth front gear and go with the larger rear sprocket.
If you have shit loads of power like a turbo you can run a 16 / 33
Dave

Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn

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Best gearing ratio 25 Jan 2020 18:10 #817904

  • Nessism
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530 chain/sprockets is the way to go. 630 is for guys stuck on nostalgia.

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Best gearing ratio 25 Jan 2020 18:33 #817906

  • urankjj
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If you want a little more off the line, I think that the easiest would be to drop a tooth from the front sprocket. Keep in mind that will move the rear wheel back slightly on the swingarm. If you want even more,(off the line), drop a front tooth and add 1 or 2 teeth to the rear sprocket. Again this would change wheel and tire size clearance to swingarm and related parts.

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Best gearing ratio 25 Jan 2020 18:50 #817908

  • Mikaw
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Street Fighter LTD wrote: All sound advise
My 78 LTD came geared 15 / 33 Dave


Got worried for a minute. I have been following this post and was worried I screwed up my ratio, I when out and looked at my '78 1000 LTD with a 16" rear 130/90 tire... I have 15 / 32... I was looking for a harder launch... Was I right or wrong...
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Best gearing ratio 25 Jan 2020 19:17 #817912

  • urankjj
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Did you get a harder launch with 15 / 32. I f not try 14 / 32, and you probably will.

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Best gearing ratio 25 Jan 2020 19:26 #817915

  • Mikaw
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Can't tell, I changed out the sprocket years ago and have no way to compare, I just noticed most suggestions swap the front sprocket...
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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Best gearing ratio 26 Jan 2020 05:04 #817923

  • Bowserpup32
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I already bought a new 530 o/ring chain. I will measure my rear tire and get back to y’all since reading this sounds like will be a determining factor.

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Best gearing ratio 26 Jan 2020 05:59 #817931

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15 / 32 is more of a highway ratio than 15 / 33 or 35
.
15 , 35 would make it peppier down low

Everyone and their brother including me has tried a 14 tooth front sprocket and it works fine , just harder on the chain life
That's why a larger rear sprocket is preferable but a costlier swap
But also as suggested a 530 swap is the modern way to go

Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn

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Best gearing ratio 26 Jan 2020 06:09 #817933

  • TexasKZ
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Also, with a 530 chain, you will likely need to go with the largest front sprocket available to insure plenty of clearance between the chain and swingarm pivot. A 14 tooth sprocket for a 530 chain will be smaller in diameter than a 14 tooth sprocket for a 630 chain.
Here you can compare different combinations.

www.gearingcommander.com
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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Last edit: by TexasKZ.
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