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1-1/8 quill size?

Old 04-21-24, 08:26 PM
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1-1/8 quill size?

Super basic stuff: bike is a ‘96 or ‘97 Pinarello Stelvio as far as I can tell. Original owner was a bit taller than I, especially from the waist up. What is the correct quill and clamp diameter for 1-1/8 threaded steerer with 3ttt Supercriterium Ergo Power II bars? This stem is way too long.
Please excuse my ignorance, and thanks.

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Old 04-21-24, 09:00 PM
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I'd really be surprised if that has a 1-1/8" steerer.

Most likely 1" steerer with 22.2mm quill stem.

I would guess 26.0 mm bar clamp dimension. 3T did make some stuff in 26.4 but I don't think Ritchey ever did, but...
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Old 04-22-24, 05:43 AM
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Originally Posted by LesterOfPuppets
I'd really be surprised if that has a 1-1/8" steerer.

Most likely 1" steerer with 22.2mm quill stem.

I would guess 26.0 mm bar clamp dimension. 3T did make some stuff in 26.4 but I don't think Ritchey ever did, but...
Oh wait. It’s the ID. I should have looked more. Thank you.
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Old 05-12-24, 11:09 AM
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Originally Posted by LesterOfPuppets
I'd really be surprised if that has a 1-1/8" steerer.

Most likely 1" steerer with 22.2mm quill stem.

I would guess 26.0 mm bar clamp dimension. 3T did make some stuff in 26.4 but I don't think Ritchey ever did, but...
…so I went and got some cheap metric calipers and I read a tiny bit on what I should actually be measuring. I was not looking in the right places at all. You are correct about the quill of course, but I measure the bars at the clamp to be 25.6mm. (And this is why I hate cheap tools.) May I assume that this is in range of a 26mm clamp, with or without a shim?
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Old 05-12-24, 12:00 PM
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Originally Posted by birdly
…so I went and got some cheap metric calipers and I read a tiny bit on what I should actually be measuring. I was not looking in the right places at all. You are correct about the quill of course, but I measure the bars at the clamp to be 25.6mm. (And this is why I hate cheap tools.) May I assume that this is in range of a 26mm clamp, with or without a shim?
3TTT bars were made to the 26.0 standard, rather than 25.4 or 26.4.
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