General Cycling Discussion - Cracked Carbon Post :(

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Aaron_F
10-04-07, 05:20 PM
I've been riding an LP Composites carbon seatpost for 7 1/2 years, and I guess it finally decided to give up the ghost. While adjusting its height after I mounted a new saddle on it yesterday, I noticed a couple cracks running up the back side of it. One is about 4 inches long, and the other is further up and about 3/4" long. The longer one is what really bothers me since I can feel how clean a crack it is as I run my fingernail against it.

Pics:

http://www.one9.us/images/bike/postcrack1.jpg

http://www.one9.us/images/bike/postcrack2.jpg

When carbon cracks, it usually goes pretty quick after that, so I ordered a Thomson Elite last night. Any reason to buy new parts is a good reason, but especially when my wife also thinks its a good idea. ;)

v1k1ng1001
10-04-07, 07:27 PM
Thomson elite is a good choice.
goldfishin
10-04-07, 10:04 PM
yeah, um, doesn't carbon usually make heaver components and lighter frames? any thompson should be light and also some of the strongest crap you can buy.

Aaron_F
10-05-07, 03:55 AM
Yeah, my carbon post weighs 236 grams @ 350mm length, and the Thomson is listed as 223 grams @ 367mm. If my carbon post lasted as long as it did, the Thomson should last just about forever.
Brian
10-05-07, 04:20 PM
The 1st rule of Fagerlin: Broad generalizations will be met with sarcastic (yet appropriate) responses. Always.
Nermal
10-06-07, 10:17 PM
If it's weight you're after, the Thompson Masterpiece is touted as being lighter while keeping the strength. Since that was a fairly expensive weight loss, I went with the Elite, too. Reason? The stock post had so much set back, I couldn't get the seat adjusted quite right. I guess I just have non standard proportions, and have been paying for it ever since I started riding.
Mchaz
10-07-07, 12:05 AM
*Pic of Beat Up Thompson Post*

Still ridable. Couldn't say that about a carbon post after whatever inflicted that damage. ;)
Brian
10-07-07, 07:48 AM
If it's weight you're after, the Thompson Masterpiece is touted as being lighter while keeping the strength. Since that was a fairly expensive weight loss, I went with the Elite, too. Reason? The stock post had so much set back, I couldn't get the seat adjusted quite right. I guess I just have non standard proportions, and have been paying for it ever since I started riding.

There is no such brand.
Siu Blue Wind
10-07-07, 08:05 AM
There is no such brand.

Thom-m-m-m-m-mmmson.
Brian
10-07-07, 08:12 AM
Thom-m-m-m-m-mmmson.

I have a good friend at Moots now, by the way. We talked about you.
Aaron_F
10-10-07, 03:58 PM
Also: "Thomison"

^^ Heard that pronunciation last week :)
rmfnla
10-10-07, 04:08 PM
I've been riding an LP Composites carbon seatpost for 7 1/2 years, and I guess it finally decided to give up the ghost. While adjusting its height after I mounted a new saddle on it yesterday, I noticed a couple cracks running up the back side of it. One is about 4 inches long, and the other is further up and about 3/4" long. The longer one is what really bothers me since I can feel how clean a crack it is as I run my fingernail against it.


Clean cracks are important.