Go Back  Bike Forums > Bike Forums > Tandem Cycling
Reload this Page >

C'Dale handlebar diameters

Notices
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!

C'Dale handlebar diameters

Old 07-15-08, 08:31 PM
  #1  
Telkwa
Senior Member
Thread Starter
 
Join Date: Jun 2008
Posts: 132
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
C'Dale handlebar diameters

Somebody please help me.
I've been scratching around on the internet for a half-hour (god-forsaken dial-up connection) and can't verify the handlebar diameters on an '05 RT1000. The captain's bar is bigger around where it clamps up than the stoker's. That much is clear. The rest I'm not sure about. Captain's bar is an FSA RD-250. Went to FSA site and found nothing.

How many handlebar diameters are there anyways?? I need a freakin' map
Telkwa is offline  
Old 07-15-08, 08:44 PM
  #2  
tandemonium
Singletrack rider(s)
 
Join Date: Aug 2005
Location: Pittsburgh Pennsylvania U.S.A.
Posts: 84

Bikes: 'dale MT800 tandem still factory stock, Specialized Enduro FS single, factory stock except for Talas up front

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Try calling Cannondale at 800-bikeusa. They've always had instant answers for our hardware questions.
tandemonium is offline  
Old 07-15-08, 09:08 PM
  #3  
Baldy88
Senior Member
 
Join Date: Jan 2006
Location: Kansas City, MO
Posts: 62

Bikes: 2016 Salsa Warbird Carbon, 2014 Felt Edict 9, 2008 Cannondale Road Tandem

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
What you really need is a cheap caliper. I found one at Boston Freight for $15 or so and it has saved me much frustration on determining things like this.
Baldy88 is offline  
Old 07-16-08, 04:45 AM
  #4  
Craigthor
Junior Member
 
Join Date: Jul 2008
Location: Cedar Rapids, IA
Posts: 12

Bikes: Cannondale Tandem

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I know my 08 has an oversized I believe it was 31.8 when I switched the pitch on my stem for a trial run.

Craig
Craigthor is offline  
Old 07-16-08, 05:58 AM
  #5  
merlinextraligh
pan y agua
 
merlinextraligh's Avatar
 
Join Date: Aug 2005
Location: Jacksonville
Posts: 30,588

Bikes: Wilier Zero 7; Merlin Extralight; Co-Motion Robusta; Schwinn Paramount; Motobecane Phantom Cross; Cervelo P2; Motebecane Ti Fly 29er; Calfee Dragonfly Tandem

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1011 Post(s)
Liked 137 Times in 79 Posts
Originally Posted by Telkwa View Post
The captain's bar is bigger around where it clamps up than the stoker's. That much is clear.

What your describing is likely an "oversized" bar which in all likelyhood is 31.8mm, which is pretty much the standard for oversized bars these days.
__________________
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  
Old 07-16-08, 06:22 AM
  #6  
Telkwa
Senior Member
Thread Starter
 
Join Date: Jun 2008
Posts: 132
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Thanks, guys. Baldy, I was thinking the same thing. Even one of those plastic jobbies would work
Telkwa is offline  
Old 07-16-08, 06:38 AM
  #7  
dfcas
Senior Member
 
Join Date: Jun 2005
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Captains bar is 31.8. The strange one, however, is the stoker stem/bar at 25.4.
dfcas is offline  
Old 07-16-08, 06:41 AM
  #8  
vitualis
Senior Member
 
vitualis's Avatar
 
Join Date: Apr 2008
Location: Sydney, NSW
Posts: 51

Bikes: 2008 Cannondale Six13 3, 1982 Colnago Super, 2007 Cell SS101

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Just get a piece of string, wrap it around a few times around the bar, straighten it out and measure with a ruler. Divide by the number of revolutions to get an average circumference.

C = pi * D

(c = circumference, D = diameter).

You don't NEED calipers to work out something simple like this!

Regards.
vitualis is offline  
Old 07-16-08, 08:02 AM
  #9  
Telkwa
Senior Member
Thread Starter
 
Join Date: Jun 2008
Posts: 132
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by vitualis View Post
You don't NEED calipers to work out something simple like this!
Well, you're right of course but I'm a simpleton. Such an elegant and simple solution (a piece of string and some basic math) wouldn't have occurred to me if my life depended on it.
Telkwa is offline  
Old 07-16-08, 01:10 PM
  #10  
Baldy88
Senior Member
 
Join Date: Jan 2006
Location: Kansas City, MO
Posts: 62

Bikes: 2016 Salsa Warbird Carbon, 2014 Felt Edict 9, 2008 Cannondale Road Tandem

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
True, but a caliper is a lot simpler when you are trying to figure out if the seat post is a 30.6 or a 30.9.
Baldy88 is offline  
Old 07-16-08, 05:14 PM
  #11  
vitualis
Senior Member
 
vitualis's Avatar
 
Join Date: Apr 2008
Location: Sydney, NSW
Posts: 51

Bikes: 2008 Cannondale Six13 3, 1982 Colnago Super, 2007 Cell SS101

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
A caliper is a lot simpler... if you own one.

As for working out tube diameters, if you use a thin string (i.e., use some thread) you will get very accurate measurements. Generally, you should be able to get a value to the tenth of a millimeter.

Regards.
vitualis is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.