11 tooth track sprocket/lockring?

Where speeds may exceed 60 kmph

11 tooth track sprocket/lockring?

Postby Mikka » Mon Aug 02, 2010 7:11 am

Before you split your pants laughing ..... If you need to ask "Why?" ... you wouldn't understand.

All I want to know is "Are they available from somewhere on Earth?" Can anyone point me towards one? ... or do I need to draw one up and make it?

I'm not in a hurry. Just starting a journey. Any help appreciated.
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by BNA » Mon Aug 02, 2010 8:34 am

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Re: 11 tooth track sprocket/lockring?

Postby mikesbytes » Mon Aug 02, 2010 8:34 am

It's not possible to get 11t on a standard screw on thread, as the diameter of the thread is too big. I think 13t is the smallest you can go
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Re: 11 tooth track sprocket/lockring?

Postby alex » Mon Aug 02, 2010 11:09 am

13t are fairly common and i think you can get a 12t but i have not seen an 11t
if i get killed while out on my bike i dont want a 'memorial ride' by random punters i have never met.
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Re: 11 tooth track sprocket/lockring?

Postby ciaran » Mon Aug 02, 2010 12:19 pm

I would hate to think what forces would be acting on an 11t fixed sprocket. Are you building a fixed bike? You could make a dodgy 11t single speed by using an 11t cassette sprocket and spacing it onto a road hub.

Not wanting to state the obvious, if you need the higher gearing on a fixed gear just put a bigger chainring on. Here's some inspiration...

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Re: 11 tooth track sprocket/lockring?

Postby brentono » Mon Aug 02, 2010 4:04 pm

Has been covered, but with one-8th pitch, you cannot get 11-teeth around
the normal diameter, of the track hub. Sorry.
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Re: 11 tooth track sprocket/lockring?

Postby alex » Tue Aug 03, 2010 11:11 am

if you use a bmx microdrive setup you can have an 8t :)
if i get killed while out on my bike i dont want a 'memorial ride' by random punters i have never met.
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Re: 11 tooth track sprocket/lockring?

Postby brentono » Tue Aug 03, 2010 11:21 am

alex wrote:if you use a bmx microdrive setup you can have an 8t :)


If you use half-inch-pitch you can have 6T :lol:
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Re: 11 tooth track sprocket/lockring?

Postby mikesbytes » Tue Aug 03, 2010 4:56 pm

I've seen photos of a mountain bike where the chain travels inside the swing arm. Wonder what sprockets would be used in such a situation?
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Re: 11 tooth track sprocket/lockring?

Postby Corsa » Wed Aug 04, 2010 9:47 am

brentono wrote:
alex wrote:if you use a bmx microdrive setup you can have an 8t :)


If you use half-inch-pitch you can have 6T :lol:


I think you mean 1 inch pitch. 1/2" is normal pitch (eg 1/2" * 3/32" was standard road chain before they became narrow, 1/2" * 1/8" is standard track chain)
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Re: 11 tooth track sprocket/lockring?

Postby alex » Wed Aug 04, 2010 9:58 am

i think the bikes with the drivetrain in the chainstay use a driveshaft and ring gear type of arrangement?

this is massively off topic now
if i get killed while out on my bike i dont want a 'memorial ride' by random punters i have never met.
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Re: 11 tooth track sprocket/lockring?

Postby brentono » Wed Aug 04, 2010 10:09 am

Corsa wrote:
brentono wrote:
alex wrote:if you use a bmx microdrive setup you can have an 8t :)


If you use half-inch-pitch you can have 6T :lol:


I think you mean 1 inch pitch. 1/2" is normal pitch (eg 1/2" * 3/32" was standard road chain before they became narrow, 1/2" * 1/8" is standard track chain)


Thanks, correct, had inch, then threw in the half.(so long ago for me, now, still have the cogs) :oops:
Was there when Shimano, tried to bring in the 10mm for the Track. :wink:
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