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Q ~ Sprocket Sizes 17" Wheels & 630 to 530 Chain Conv

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wild_zed
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Q ~ Sprocket Sizes 17" Wheels & 630 to 530 Chain Co

#1 PostAuthor: wild_zed » Sat Apr 26, 2014 5:07 pm

For the Z1000J
What are the recommended sprocket sizes, front and rear when doing both
(a) a 17 inch wheel conversion
(b) 630 to 530 chain and sprocket conversion
In my shed
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1981 Z1000J
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Blackhat 999
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#2 PostAuthor: Blackhat 999 » Sat Apr 26, 2014 5:38 pm

Don"t know, but thats some Exciting bikes in your shed,, :beam
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Pigford
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#3 PostAuthor: Pigford » Sat Apr 26, 2014 5:39 pm

Just keep the final drive ratio the same - around 2.2:1 :wink:

I'm running a 19 front & 42 rear on me Harris with 17" wheels & 530 chain and it's gearing is pretty good - could even go a smidge higher geared (less tooths on rear) no probs :lol:
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zed1015
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#4 PostAuthor: zed1015 » Sat Apr 26, 2014 6:37 pm

You want 1.92 to 1 to equal the original ratio you had with the 18"s.
If you have a chunkier modern swinger then somewhere around 19t front and 38t to 40t rear will help the chain clear the top run.
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wild_zed
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#5 PostAuthor: wild_zed » Sat Apr 26, 2014 9:03 pm

zed1015 wrote:You want 1.92 to 1 to equal the original ratio you had with the 18"s.
If you have a chunkier modern swinger then somewhere around 19t front and 38t to 40t rear will help the chain clear the top run.


This is the swingarm that I am using, together with ZX9 forks, brakes and rims

Image
In my shed

2013 KTM 1190 Adv

2012 MV Agusta Brutale

2011 Ducati Multistrada 1200

2010 KTM990 SMT

1981 Z1000J

1980 H**** CB900F
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weaver
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#6 PostAuthor: weaver » Sat Apr 26, 2014 10:09 pm

My elr has 17 inch wheels with zrx swinger,I am now running 17t front and 39 rear which is just about perfect
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