Carbon post damage?
#1
Thread Starter
Junior Member
Joined: Jul 2020
Posts: 23
Likes: 3
Carbon post damage?
Hey guys,
I managed to trade in my previous bike for tcr advanced sl 1 disc 2020. Extremely happy how it rides! They cut the seat post to my dimensions. Im just putting it together when i noticed slight damage on the post where they cut it. Is this a concern? Just as expected during cutting process? The forum doesn't let me attach pics. . The paint has been chipped and maybe some carbon fiber on the outside.
I managed to trade in my previous bike for tcr advanced sl 1 disc 2020. Extremely happy how it rides! They cut the seat post to my dimensions. Im just putting it together when i noticed slight damage on the post where they cut it. Is this a concern? Just as expected during cutting process? The forum doesn't let me attach pics. . The paint has been chipped and maybe some carbon fiber on the outside.
#2
Senior Member



Joined: Mar 2007
Posts: 9,181
Likes: 5,365
From: SF Bay Area, East bay
Bikes: Miyata 618 GT, Marinoni, Kestral 200, Soma double cross 2002 Trek 5200, KHS Flite, Koga Miyata, Schwinn Spitfire 5, Mondia Special, Univega Alpina, Miyata team Ti, Santa Cruz Highball, Waterford rs11
You have 10 post now, so post a picture.
#3
Senior Member
Joined: Oct 2017
Posts: 1,681
Likes: 799
From: Chapel Hill NC
Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S
Hey guys,
I managed to trade in my previous bike for tcr advanced sl 1 disc 2020. Extremely happy how it rides! They cut the seat post to my dimensions. Im just putting it together when i noticed slight damage on the post where they cut it. Is this a concern? Just as expected during cutting process? The forum doesn't let me attach pics. . The paint has been chipped and maybe some carbon fiber on the outside.
I managed to trade in my previous bike for tcr advanced sl 1 disc 2020. Extremely happy how it rides! They cut the seat post to my dimensions. Im just putting it together when i noticed slight damage on the post where they cut it. Is this a concern? Just as expected during cutting process? The forum doesn't let me attach pics. . The paint has been chipped and maybe some carbon fiber on the outside.
#4
Senior Member



Joined: Mar 2007
Posts: 9,181
Likes: 5,365
From: SF Bay Area, East bay
Bikes: Miyata 618 GT, Marinoni, Kestral 200, Soma double cross 2002 Trek 5200, KHS Flite, Koga Miyata, Schwinn Spitfire 5, Mondia Special, Univega Alpina, Miyata team Ti, Santa Cruz Highball, Waterford rs11
I agree, as long as there is no damage in the clamp area it should be fine.
#7
Thread Starter
Junior Member
Joined: Jul 2020
Posts: 23
Likes: 3





#8
Senior Member
Joined: Oct 2017
Posts: 1,681
Likes: 799
From: Chapel Hill NC
Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S
Not sure what they did at the front edge - what looks like a cosmetic outer layer has detached a little. However the CF underneath looks undisturbed. Personally, I’d have no concerns with cleaning up the cut edge and just using it.
#9
Senior Member

Joined: Jun 2014
Posts: 4,628
Likes: 943
From: Ontario, Canada
Bikes: iele Latina, Miele Suprema, Miele Uno LS, Miele Miele Beta, MMTB, Bianchi Model Unknown, Fiori Venezia, Fiori Napoli, VeloSport Adamas AX
Is t hat a seat TUBE rather than a seatpost?
Cheers
Cheers
#11
Senior Member
Joined: Oct 2017
Posts: 1,681
Likes: 799
From: Chapel Hill NC
Bikes: 2000 Litespeed Vortex Chorus 10, 1995 DeBernardi Cromor S/S
#12
Non omnino gravis
Joined: Feb 2015
Posts: 8,552
Likes: 1,739
From: SoCal, USA!
Bikes: Nekobasu, Pandicorn, Lakitu
#13
Senior Member

Joined: Jul 2019
Posts: 886
Likes: 556
From: In the south but from North
Bikes: Turner 5-Spot Burner converted; IBIS Ripley, Specialized Crave, Tommasini Sintesi, Cinelli Superstar, Tommasini X-Fire Gravel, Tommasini Mach Ti Gravel
Honestly that looks to be a bad job at cutting by the shop but it does appear to be just on the surface. You may want to cover the area so moisture does not get behind and saturate the carbon.
#14
Senior Member

Joined: Jun 2014
Posts: 4,628
Likes: 943
From: Ontario, Canada
Bikes: iele Latina, Miele Suprema, Miele Uno LS, Miele Miele Beta, MMTB, Bianchi Model Unknown, Fiori Venezia, Fiori Napoli, VeloSport Adamas AX
I hope you don't mind me asking this here. How do you attach the saddle to the seat column?
Cheers
Cheers
#16
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
a little wet or dry sandpaper & water, can clean up the edge , but wear your mask while doing it,
as your lungs are seeing carbon dust in the same way they do Asbestos.
or silicosis.
sanding wet keeps the dust down..
basically the cutting was back to front, same thing happens when you cut wood ...
with a saw,
never cut wood?
....
as your lungs are seeing carbon dust in the same way they do Asbestos.
or silicosis.
sanding wet keeps the dust down..
basically the cutting was back to front, same thing happens when you cut wood ...
with a saw,
never cut wood?
....
Last edited by fietsbob; 07-30-20 at 04:00 PM.
#18
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
#19
Senior Member
Joined: Jan 2016
Posts: 259
Likes: 37
From: near Omaha, NE
Bikes: Trek Domane 2020 SLR7, 2016 4.3 Disc, 2017 Raleigh Stuntman
This thread is strikingly similar to one on RBR, except no one suggested to use nail polish over here, yet.
Last edited by ckindt; 07-30-20 at 05:37 PM.
#21
Thread Starter
Junior Member
Joined: Jul 2020
Posts: 23
Likes: 3
1. Chipped carbon shown in the circle on the left
2. Lillie gap in between carbon layers shown in the circle on the right. When i press from the inside of the tube i can see the carbon layer moving.
Do you still think this is not an issue? I've asked the shop for a replacement but they have been very hard to talk to (e.g. "we're looking into it" etc..).
#22
Senior Member

Joined: Jul 2019
Posts: 886
Likes: 556
From: In the south but from North
Bikes: Turner 5-Spot Burner converted; IBIS Ripley, Specialized Crave, Tommasini Sintesi, Cinelli Superstar, Tommasini X-Fire Gravel, Tommasini Mach Ti Gravel
Hey mate, i thought I'll attach another picture as it provides more clarity. I drew 2 circles around the issues I'm concerned about:
1. Chipped carbon shown in the circle on the left
2. Lillie gap in between carbon layers shown in the circle on the right. When i press from the inside of the tube i can see the carbon layer moving.
Do you still think this is not an issue? I've asked the shop for a replacement but they have been very hard to talk to (e.g. "we're looking into it" etc..).

1. Chipped carbon shown in the circle on the left
2. Lillie gap in between carbon layers shown in the circle on the right. When i press from the inside of the tube i can see the carbon layer moving.
Do you still think this is not an issue? I've asked the shop for a replacement but they have been very hard to talk to (e.g. "we're looking into it" etc..).

#23
Non omnino gravis
Joined: Feb 2015
Posts: 8,552
Likes: 1,739
From: SoCal, USA!
Bikes: Nekobasu, Pandicorn, Lakitu
#25
Non omnino gravis
Joined: Feb 2015
Posts: 8,552
Likes: 1,739
From: SoCal, USA!
Bikes: Nekobasu, Pandicorn, Lakitu
Yessir. A composite-specific blade will be a "burr," with carbide or diamond grit instead of teeth. You can "get away with" using a 32T, but there's still a chance it will snag the fibers. If I were to guess, I'd say that shop maybe used a dull 24T, and possibly even an 18T. Absolutely the wrong tool for the job.







