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Carbon saddle

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Carbon saddle

Old 11-20-23, 07:42 AM
  #26  
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Originally Posted by choddo
The assumption being that there’s only about 1.5 inches of full diameter post on the bit you cut off below the minimum insertion point so as long as you leave that much, it should be fine? Ok well good luck. I honestly thought your photo was a joke at first.
Not quite following you? Said differently, the seat post was originally 34cm and after cutting off 8cm and adjusting the seat post in the seat tube for my desired inseam length, there’s 15cm of seat post above the seat tube and 11cm of seat post in the seat tube, with the end of the seat post extending about 3cm below the union of the seat tube and the top tube. So I’m confident all is well with the strength of the seat post.
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Old 11-21-23, 07:16 PM
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Originally Posted by Biker Pete
Not quite following you? Said differently, the seat post was originally 34cm and after cutting off 8cm and adjusting the seat post in the seat tube for my desired inseam length, there’s 15cm of seat post above the seat tube and 11cm of seat post in the seat tube, with the end of the seat post extending about 3cm below the union of the seat tube and the top tube. So I’m confident all is well with the strength of the seat post.
Yes, from your photo it looks like the min insertion length was just over 8 cm. So you should be okay with 11 cm. But I wouldn’t have cut it off myself.
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Old 11-21-23, 09:17 PM
  #28  
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Originally Posted by PeteHski
Yes, from your photo it looks like the min insertion length was just over 8 cm. So you should be okay with 11 cm. But I wouldn’t have cut it off myself.
I think the important measurement is to get the seat post far enough into the seat tube so that it is approx one seat post diameter past the union of the seat tube and top tube. The only limitation my cutting the seat post presents is that I cannot raise the seat much and still be safe. But it’s perfect for me as is. And I’m 20 grams faster now! (LOL!)

Last edited by Biker Pete; 11-21-23 at 09:22 PM.
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Old 11-21-23, 09:25 PM
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Originally Posted by 88ss
I tried a pure carbon saddle once, I had to make it myself. Quit using it because it left marks on any pants I rode with that were not pitch-black.
I'm thinking this is a joke, but what do I know....
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Old 11-22-23, 01:18 PM
  #30  
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I've got a non-padded carbon saddle on my gravel monster. I've done 2-1/2 hour rides and no comfort problems.

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Old 11-23-23, 04:55 AM
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Originally Posted by Biker Pete
I think the important measurement is to get the seat post far enough into the seat tube so that it is approx one seat post diameter past the union of the seat tube and top tube. The only limitation my cutting the seat post presents is that I cannot raise the seat much and still be safe. But it’s perfect for me as is. And I’m 20 grams faster now! (LOL!)
That would make me 0.6 of a second faster over a 1 hour climb of Alpe d’Huez.
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Old 11-23-23, 06:40 AM
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Originally Posted by PeteHski
Yes, from your photo it looks like the min insertion length was just over 8 cm. So you should be okay with 11 cm. But I wouldn’t have cut it off myself.
Yeah, seems like a rough and uneven cut to me based on the picture... I've always cut my own steerer tubes but I am pretty sure I am better equipped than the OP since my cuts are a lot cleaner than that. You can see the carbon fibre detaching from the glue which tells me that may have applied too much pressure on the saw when he was cutting down the tube.

OP - I would recommend sanding the cut with a fine sand paper and applying some nail polish on it after to seal it.
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Old 11-23-23, 07:46 AM
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Originally Posted by PeteHski
That would make me 0.6 of a second faster over a 1 hour climb of Alpe d’Huez.
In addition to that the bike is now so much easier lift up onto the bike stand.
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Old 11-23-23, 07:49 AM
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Originally Posted by eduskator

OP - I would recommend sanding the cut with a fine sand paper and applying some nail polish on it after to seal it.
I did sand smooth but hadn’t heard about the nail polish to seal, thanks!
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Old 11-23-23, 09:49 AM
  #35  
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Originally Posted by TMonk
maybe? not sure. I like the SLR so far. I'm a smaller rider at 5'9" and 145 lbs. Category 2 and active Master's racer.

I also have a couple of old school Selle Italia Flites around too - now those are comfortable. I think they're wider? IDK
My likes are similar and Im 6'2" and 195.
Love leather or leather like saddles with carbon or TI structure.
I do still love the Rolls saddles on several of my classics.
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Old 11-23-23, 09:56 AM
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Originally Posted by Biker Pete
I did sand smooth but hadn’t heard about the nail polish to seal, thanks!
My pleasure. It's an old trick to prevent any further unwinding and deterioration. That's what I do on top of my steerer tubes, just in case.
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