Best gearing ratio

Bowserpup32
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25 Jan 2020 15:40 #817896 by Bowserpup32

Best gearing ratio was created by Bowserpup32

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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Scirocco
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Never change a running system

25 Jan 2020 16:47 - 25 Jan 2020 17:01 #817897 by Scirocco

Replied by Scirocco on topic Best gearing ratio

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

My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

Last edit: 25 Jan 2020 17:01 by Scirocco.

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650ed
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25 Jan 2020 17:11 #817898 by 650ed

Replied by 650ed on topic Best gearing ratio

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)

The following user(s) said Thank You: Scirocco

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Street Fighter LTD
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TURBO, Its Better to be Blown than Injected

25 Jan 2020 17:58 #817902 by Street Fighter LTD

Replied by Street Fighter LTD on topic Best gearing ratio

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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Nessism
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25 Jan 2020 18:10 #817904 by Nessism

Replied by Nessism on topic Best gearing ratio

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

Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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urankjj
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25 Jan 2020 18:33 #817906 by urankjj

Replied by urankjj on topic Best gearing ratio

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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Mikaw
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25 Jan 2020 18:50 #817908 by Mikaw

Replied by Mikaw on topic Best gearing ratio

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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urankjj
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25 Jan 2020 19:17 #817912 by urankjj

Replied by urankjj on topic Best gearing ratio

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

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Mikaw
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25 Jan 2020 19:26 #817915 by Mikaw

Replied by Mikaw on topic Best gearing ratio

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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Bowserpup32
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26 Jan 2020 05:04 #817923 by Bowserpup32

Replied by Bowserpup32 on topic Best gearing ratio

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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Street Fighter LTD
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TURBO, Its Better to be Blown than Injected

26 Jan 2020 05:59 #817931 by Street Fighter LTD

Replied by Street Fighter LTD on topic Best gearing ratio

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

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TexasKZ
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26 Jan 2020 06:09 - 26 Jan 2020 06:14 #817933 by TexasKZ

Replied by TexasKZ on topic Best gearing ratio

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

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

Last edit: 26 Jan 2020 06:14 by TexasKZ.

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