Track sprocket won't fit my chain.

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Track sprocket won't fit my chain.

Postby Mikka » Sat Oct 23, 2010 7:05 am

I'm lost. I've read all chains have a 1/2" pitch. But my track sprockets won't fit. The distance between the teeth is slightly greater on my rear cogs, so the chain skips. What am I missing?

If this is covered elsewhere, just point.
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by BNA » Sat Oct 23, 2010 7:39 am

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Re: Track sprocket won't fit my chain.

Postby rkelsen » Sat Oct 23, 2010 7:39 am

Are you using 3/32" chain on a 1/8" sprocket?
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Re: Track sprocket won't fit my chain.

Postby gclark8 » Sat Oct 23, 2010 8:16 am

+1 for above

or

Worn out sprocket. :roll:
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Re: Track sprocket won't fit my chain.

Postby Mikka » Sat Oct 23, 2010 6:14 pm

New sprockets, new chain. One 1/8" sprocket. One 3/32". Chain is 3/32" and won't fit either. Pitch between the teeth seems wrong. I'm doing something dumb, just not sure what.
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Re: Track sprocket won't fit my chain.

Postby TheSkyMovesSideways » Sat Oct 23, 2010 6:16 pm

Mikka wrote:New sprockets, new chain. One 1/8" sprocket. One 3/32". Chain is 3/32" and won't fit either. Pitch between the teeth seems wrong. I'm doing something dumb, just not sure what.

You can't fit a 3/32" chain on a 1/8" sprocket, the sprocket will be too wide for the chain.
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Re: Track sprocket won't fit my chain.

Postby gclark8 » Sat Oct 23, 2010 6:41 pm

1/8 = 4/32 :roll:
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Re: Track sprocket won't fit my chain.

Postby rkelsen » Sat Oct 23, 2010 7:11 pm

Mikka wrote:Chain is 3/32"

There's your problem.
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Re: Track sprocket won't fit my chain.

Postby Purt » Sun Oct 24, 2010 8:27 pm

Don't some older chains and sprockets have a wider spacing as in gap in between teeth on the sprocket?

Or am I just mony balony?
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Re: Track sprocket won't fit my chain.

Postby Uncle Grumpy » Sun Oct 24, 2010 8:57 pm

Purt wrote:Don't some older chains and sprockets have a wider spacing as in gap in between teeth on the sprocket?


Yes, some older bikes had 1" pitch, modern stuff is 1/2" pitch.

You won't find a bike shop stocking 1" pitch stuff this side of... I dunno, the 50s or something.

In any event, a 1/2" chain will still run on a 1" pitch sprocket. But that's not the issue for the OP.

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Re: Track sprocket won't fit my chain.

Postby munga » Sun Oct 24, 2010 10:00 pm

not using some old dura-ace 10 stuff are you?
google shimano 10 pitch if you are
pitty43 wrote:Thanks all for your help. Better change my Gumtree add now.

https://www.facebook.com/groups/retroclassiccycling/
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Re: Track sprocket won't fit my chain.

Postby Mikka » Sun Oct 24, 2010 10:33 pm

It's not the width, it's the pitch. I was comparing and couldn't understand why the pitch was the same.

Thanks for your comments. I'll do some more searching.
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Re: Track sprocket won't fit my chain.

Postby gclark8 » Mon Oct 25, 2010 12:29 am

Photos please... :?:
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Re: Track sprocket won't fit my chain.

Postby Uncle Grumpy » Mon Oct 25, 2010 8:52 am

Mikka wrote:It's not the width, it's the pitch. I was comparing and couldn't understand why the pitch was the same.

Thanks for your comments. I'll do some more searching.


What model chain is it? While you're at it, what model sprockets?

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Re: Track sprocket won't fit my chain.

Postby scorch » Wed Nov 03, 2010 7:16 am

hey, have this been resolved? which parts did you have at the end of the day? =)
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