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 12-17-15, 09:43 AM   #51
waynesulak
Senior Member
 
waynesulak's Avatar
 
Join Date: Jan 2008
Location: Ft Worth, TX
Bikes: Custom 650B tandem by Bob Brown, 650B tandem converted from Santana Arriva, Santana Noventa, Boulder Bicycle 700C, Gunnar Sport
Posts: 1,948
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Quote:
Originally Posted by merlinextraligh View Post
You obviously have to do what works for your team.

For us, we've just never seen the need for a suspension seat post. My stoker has done 160 mile rides (cross Florida) and 10 plus hour rides (Everest Challnege) without a suspension seat post and in more comfort than on her single.

And frankly, I don't see an inherent reason that a stoker should need a suspension seat post any more than a rider on a single bike.

The position of the stoker over the rear wheel is not materially different than than a rider on a single bike. So that leaves the stoker getting pounded by unseen obstacles which can be addressed by talking and standing.

Coming from a background of riding rigid mountain bikes, your knees and elbows can give you lots of suspension.

While suspension seat posts obviously work for lots of teams, I think sometimes people,gravitate to them to address problems that can be better addressed by the right seat, right fit, conditioning,and communication.

And as for the cost of weight the point isn't whether a Tetra or a Dragonfly is cost effective, the point is you're paying a boat load for any Calfee tandem, mostly to reduce weight. A free way to get the weight reduction is forgo heavy components like a 420 gram seatpost.
I agree. On the other hand I believe there are some that buy a Calfee primarily for reasons other than weight reduction. Some may just want the best and feel or have been told that Calfee is the best. I don't mean to judge that approach but just want to point out that there are other possible motivations.
waynesulak is offline   Reply With Quote
Old 03-30-17, 02:00 PM   #52
Scraper
Senior Member
 
Join Date: Mar 2016
Bikes:
Posts: 55
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Rinsten Spring -- anyone going to try it for the stoker?
https://www.roadbikerider.com/latest...shock-absorber
Scraper is offline   Reply With Quote
Old 04-03-17, 06:09 PM   #53
zonatandem
Senior Member
 
zonatandem's Avatar
 
Join Date: Dec 2003
Location: Tucson, AZ
Bikes: Custom Zona c/f tandem + Scott Plasma single
Posts: 10,962
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 57 Post(s)
My stoker (Kay) has never had a suspension seatpost on any of our 5 tandems during our over 42 years (and over a quarter million miles) of tandeming.
In that time tested lots of prototype and experimental stuff for tandems; the only suspension she liked was the (no longer produced) carbon fiber Softride beam.
However if your stoker insists on suspension, then get it!
Keep your stoker smiling!
Rudy and Kay/zonatandem
zonatandem is offline   Reply With Quote
Old 04-03-17, 09:30 PM   #54
alias5000
Member
 
Join Date: Apr 2016
Location: Ontario
Bikes: 2005 Devinci St. Tropez, 2015 Devinci Silverstone SL4, 2012 Cannondale Road Tandem 2, CCM Winter beater bike
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Subscribed.
alias5000 is offline   Reply With Quote
Old 04-06-17, 09:18 PM   #55
DeadGrandpa
Senior Member
 
DeadGrandpa's Avatar
 
Join Date: Sep 2014
Location: Carolina
Bikes: Jamis Renegade Expert, Bike Friday Pocket Llama, Miyata 215 ST, Santana Arriva tandem, Bridgestone RB-1
Posts: 469
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Quote:
Originally Posted by fietsbob View Post
.....
Putting on a CF Frame You wouldn't want anything like the rider weight adjustable Aluminum Metal CC Thudbuster.
Please forgive my ignorance, fietsbob, but I put a Thudbuster ST on my CF single bike about a year ago and haven't noticed any disadvantages. There is the weight, of course, but I start most rides with 3 liters of water in a frame bag along with the usual spares and tools, so I'm not on an ultra lightweight machine, anyhow. I think it helps on all riding surfaces, especially washboard gravel roads.

Are you saying it might damage the CF frame? Is the stoker's seat tube on an ultra lightweight tandem simply not robust enough to handle the stress? It seems to me that the post's shock absorption would result in less torque on the seat post. I'm probably wrong. I am looking for a suspension post to replace the old Giant in-line coil spring model on my steel Santana tandem.
DeadGrandpa is offline   Reply With Quote
Old 04-21-17, 07:36 AM   #56
sweeks
Senior Member
 
sweeks's Avatar
 
Join Date: Sep 2004
Location: Chicago area
Bikes: Airborne "Carpe Diem", Trek 6000, Strida 2, Dahon "Helios XL", Dahon "Mu XL", Tern "Verge S11i"
Posts: 268
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Quote:
Originally Posted by Scraper View Post
Rinsten Spring -- anyone going to try it for the stoker?
https://www.roadbikerider.com/latest...shock-absorber
I have one on my folding commuter bike. After a couple weeks and about 60 miles, I am pleasantly surprised by its performance. It's a bit... er... "industrial" looking, and without a rider on the bike it looks like you'd be doing push-ups to stay in place. But the saddle levels out when there's a rider on it, and there is no annoying "bounce" as would be expected from an un-damped spring. I attribute the damping to my (m)ass. ;-)
Photos on the "Rinsten" thread.
Next trial: on my road bike.
Steve
sweeks is offline   Reply With Quote
Old 05-23-17, 06:53 AM   #57
bellaco
Newbie
 
bellaco's Avatar
 
Join Date: Aug 2008
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
?What is the difference between placing the spring in the seatpost and placing it in the saddle?

Last edited by bellaco; 05-23-17 at 06:53 AM. Reason: mispelled
bellaco is offline   Reply With Quote
Old 05-23-17, 07:44 AM   #58
merlinextraligh
pan y agua
 
merlinextraligh's Avatar
 
Join Date: Aug 2005
Location: Jacksonville
Bikes: Wilier Zero 7; Merlin Extralight; Co-Motion Robusta; Schwinn Paramount; Motobecane Phantom Cross; Cervelo P2; Motebecane Ti Fly 29er; Calfee Dragonfly Tandem
Posts: 30,067
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 688 Post(s)
So, contrary to my railings against suspension seatposts, our next tandem a Co-Motion Java is coming with a suspension post for the stoker. I'm thinking that for dirt road use, and maybe even some light single track, the suspension post may be useful.

Depending on how rough the ride turns out to be on the roads we end up using it on, I may switch it out.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
merlinextraligh is offline   Reply With Quote
Old 05-23-17, 08:49 AM   #59
mtseymour
Senior Member
 
Join Date: Nov 2010
Location: Vancouver, BC
Bikes: 2014 Calfee Tetra, 2014 Norco Carbon Sight, 2016 Giant TCR
Posts: 315
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Quote:
Originally Posted by bellaco View Post
?What is the difference between placing the spring in the seatpost and placing it in the saddle?
There are some saddle with an integrated spring (eg. Brooks B67) or really thick padding. The disadvantages are

-can't match spring rate to rider weight. It can be too stiff or too soft.
-even if the spring rate is correct, there is no damping (ie. too bouncy at high cadence).
-low selection of saddle types, especially for female stokers.

A really good suspension seatpost has none of these drawbacks and are highly adjustable.
mtseymour is offline   Reply With Quote
Old 05-23-17, 12:46 PM   #60
bellaco
Newbie
 
bellaco's Avatar
 
Join Date: Aug 2008
Bikes:
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by mtseymour View Post
There are some saddle with an integrated spring (eg. Brooks B67) or really thick padding. The disadvantages are

-can't match spring rate to rider weight. It can be too stiff or too soft.
-even if the spring rate is correct, there is no damping (ie. too bouncy at high cadence).
-low selection of saddle types, especially for female stokers.

A really good suspension seatpost has none of these drawbacks and are highly adjustable.
Thanks.
bellaco 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 03:30 AM.


 
  • Ask a Question
    get answers from real people!
Click to start entering your question.
I HAVE A QUESTION