Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Tandem Cycling A bicycle built for two. Want to find out more about this wonderful world of tandems? Check out this forum to talk with other tandem enthusiasts. Captains and stokers welcome!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-06-05, 08:32 PM   #1
Brian
Senior Member
Thread Starter
 
Brian's Avatar
 
Join Date: Nov 2004
Location: Between the mountains and the lake.
Bikes: 8 bikes - one for each day of the week!
Posts: 16,683
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Carbon Fibre Seatpost For Captain?

I have a spare carbon fibre seatpost, and think it would work great on our tandem, but I'm wondering just how strong they really are. Am I asking for trouble? It's off a Giant CRX. Input would be appreciated.
Brian is offline   Reply With Quote
Old 05-06-05, 09:15 PM   #2
mtbcyclist
Senior Member
 
mtbcyclist's Avatar
 
Join Date: Apr 2004
Bikes:
Posts: 131
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't have an answer for ya but I was wondering how one would work for the stoker. I saw on a bike on ebay. Made me think a bit.
mtbcyclist is offline   Reply With Quote
Old 05-06-05, 10:21 PM   #3
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,210
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Captain & stoker positions have Easton EC-70 seatposts on both road tandems; no issues in two years of use. Can't comment on off-road applications as we're pretty happy with our very robust Thomson seatposts.
TandemGeek is offline   Reply With Quote
Old 05-06-05, 10:26 PM   #4
zonatandem
Senior Member
 
zonatandem's Avatar
 
Join Date: Dec 2003
Location: Tucson, AZ
Bikes: Custom Zona c/f tandem + Scott Plasma single
Posts: 10,858
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Pillot and stoker seatposts are c/f . . . no problems after 7,000+ miles on our tandem.
zonatandem is offline   Reply With Quote
Old 05-06-05, 11:13 PM   #5
Brian
Senior Member
Thread Starter
 
Brian's Avatar
 
Join Date: Nov 2004
Location: Between the mountains and the lake.
Bikes: 8 bikes - one for each day of the week!
Posts: 16,683
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I swore off steel and plastic for this bike, but it's looks like I may be tempted to give it a try, unless someone posts some catastrophic anecdote. Thanks for your input.
Brian is offline   Reply With Quote
Old 05-07-05, 12:07 AM   #6
LV2TNDM
Senior Member
 
Join Date: Apr 2005
Location: Northern CA
Bikes:
Posts: 197
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I'd be concerned about two things:
1) Stem clamp. Even if the stem were well-deburred, some CF posts have only a limited range where they're supposed to be clamped (AL insert on limited length inside).
2) All the forces a captain's seatpost undergoes - more than a half bike.
And I've heard stories of catastrophic handlebar failures, so I'd be wary with CF under the captain. After all, if the captain falls off, stoker is sure to follow!
But that said, I'd also be curious if this is for road or mountain. I hear Stapfam has bend many seatposts on his mt. tandem. I don't see a response from him; I'd like to hear what he has to say.
LV2TNDM is offline   Reply With Quote
Old 05-07-05, 12:18 AM   #7
Brian
Senior Member
Thread Starter
 
Brian's Avatar
 
Join Date: Nov 2004
Location: Between the mountains and the lake.
Bikes: 8 bikes - one for each day of the week!
Posts: 16,683
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LV2TNDM, I sent you a link to a photo of the bike in question. Definitely not just for the road.
Brian is offline   Reply With Quote
Old 05-07-05, 12:47 AM   #8
LV2TNDM
Senior Member
 
Join Date: Apr 2005
Location: Northern CA
Bikes:
Posts: 197
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Got it! And thanks again.
LV2TNDM is offline   Reply With Quote
Old 05-07-05, 12:24 PM   #9
mtbcyclist
Senior Member
 
mtbcyclist's Avatar
 
Join Date: Apr 2004
Bikes:
Posts: 131
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What would you do? Carbon Seat post or Suspension seat post?

You folks running the carbon seat posts I assume your frames are aluminum? Does the Carbon seat post really make that big of a difference? Just curious as in my 15 years of cycling (single bike) on road/dirt I have never used one but have always been curious.

Thanks!
mtbcyclist is offline   Reply With Quote
Old 05-07-05, 04:08 PM   #10
Brian
Senior Member
Thread Starter
 
Brian's Avatar
 
Join Date: Nov 2004
Location: Between the mountains and the lake.
Bikes: 8 bikes - one for each day of the week!
Posts: 16,683
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I don't like the idea of a suspension post for me, as the captain. And our bike is titanium. THe post I have now is black, and very scratched from the stoker stem, but I have a new stoker stem, with a different clamp design as well. I'll probably give the clamp surface a good polishing before I use it.
Brian is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 02:48 AM.