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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-14-06, 02:18 PM   #1
carleton
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Help me ID this Shimano chainring (pic)

I'm looking for the model number and/or maybe info on where to get one. I believe that this is track specific.

Sorry for the low quality pic.



Thanks,

C
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Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.
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Old 05-14-06, 02:23 PM   #2
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looks like one of their TT rings...not sure on the cranks. DuraAce for sure though if they are Shimano cranks
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Old 05-14-06, 02:27 PM   #3
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I would have said the TT rings as well, but those are 130 BCD
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Old 05-14-06, 02:28 PM   #4
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Quote:
Originally Posted by [165]
looks like one of their TT rings...not sure on the cranks. DuraAce for sure though if they are Shimano cranks
Yeah, it does look like one of their TT rings. But, I saw it on the bike of a messenger in Baltimore that is known for having dope track equipment. That's why I'm guessing (and hoping) that it may be a track specific ring instead of a 9 speed TT ring.
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Old 05-14-06, 02:31 PM   #5
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Quote:
Originally Posted by [165]
looks like one of their TT rings...not sure on the cranks. DuraAce for sure though if they are Shimano cranks
Yes, they are Dura Ace cranks.

Here's the rest of the bike:

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Old 05-14-06, 02:37 PM   #6
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throw this question into the Track forum if the rider, indeed, has dope track "shhit"
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Old 05-14-06, 02:44 PM   #7
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Quote:
Originally Posted by carleton
I saw it on the bike of a messenger in Baltimore that is known for having dope track equipment.
Something about this statement makes me want to have as many heavy, high-maintenance gears as possible, STAT....
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Old 05-14-06, 04:45 PM   #8
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Quote:
Originally Posted by slopvehicle
Something about this statement makes me want to have as many heavy, high-maintenance gears as possible, STAT....
I don't get it.
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Last edited by carleton; 05-14-06 at 05:31 PM.
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Old 05-14-06, 06:01 PM   #9
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Maybe it's the picture, but to me it looks oddly elliptical as if it were a Biopace ring.

*shrug*
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Old 05-14-06, 06:05 PM   #10
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Maybe it's the picture, but to me it looks oddly elliptical as if it were a Biopace ring.

*shrug*
That image is the bottom corner of a wide-angle photo. So, it's distorted.
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Old 05-14-06, 06:25 PM   #11
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Originally Posted by carleton
That image is the bottom corner of a wide-angle photo. So, it's distorted.
Ah. Well, never mind my comment then.
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Old 05-14-06, 09:01 PM   #12
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I'm glad that this is being discussed. I have been wondering about this chainring ever since seeing these pictures on Cycling News. The second image clearly shows champagne 75's which only come in 144. Also, I don't see any of the ramp pins normally seen on the 130 bcd 3/32 shimano tt type.

So I speculate that this is indeed a 144 bcd track chainring. I mean clearly the teams and this messenger are not modifying the bolt patterns on the chainrings. Also, and this is a moot point because of the Sugino pic, but why encounter chainline issues using the old dura ace double road crank on a track bike-with all 3/32 no less...

Euro-Asia, which imports the normal Shimano chainrings does not have this enigma on their website. Sorry I don't have any specifics but I thought I might help out a little.

Keep us posted
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