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

Converting to disk/Frame repair.

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!

Converting to disk/Frame repair.

Old 10-21-10, 03:10 PM
  #1  
Senior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 214
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Converting to disk/Frame repair.

Hi all,

I have a cannondale RT-1000 and was wanting to get a disk fork, non carbon. I have found that Santana makes them, but I was wondering if there was any other options? All of the forks that I have found in my searches are carbon, which I would rather not deal with.

Additionally the same tandem's water bottle mount threads on the mount under the downtube have become stripped, I was wondering if anyone knew if Cannondale would repair this? I haven't really found any private frame builders willing to mess with AL frames.

Thanks for your time!
accordionfolder is offline  
Old 10-21-10, 05:47 PM
  #2  
Senior Member
 
Join Date: Jul 2008
Posts: 687
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Will a Santana fork work. I think they use a 1 1/4 in. steerer. Does Cannondale use that as well or are they 1 1/8th?
professorbob is offline  
Old 10-21-10, 06:05 PM
  #3  
Senior Member
 
Join Date: Dec 2005
Location: Indianapolis, IN
Posts: 400

Bikes: Co-Motion tandem, Serotta, and Specialized mt. bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked 11 Times in 11 Posts
If your Cannondale has an 11/8 steerer then Co-Motion (co-motion.com) or R and E Cycles (https://www.rodcycle.com/) might make a fork for you. If these don't work out for you there are several fame builders who occasionally build tandems who might build you a fork.
tandem rider is offline  
Old 10-21-10, 07:12 PM
  #4  
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Posts: 7,231
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
Cannondale's have used 1.125 (1 1/8) steerers since 1996. Co-Motion has an OEM steel disc fork that would probably work pretty well on your Cannondale. The dimensions and rake are probably a little bit different (a tad shorter and a tad less rake), but that might not be a bad thing.

As for the water bottle bosses being buggered up, you might just call Cannondale tech support to see if they have a recommended solution. I think most bosses are bonded-in on aluminum frames so drilling out the old ones and bonding new ones in place shouldn't be all that hard... but that's merely a guess as it's nothing that I've ever done.
TandemGeek is offline  
Old 10-21-10, 08:08 PM
  #5  
Senior Member
 
Join Date: Jul 2008
Posts: 687
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Is the boss spinning or stripped. If stripped, just go to a hardware store and get the next larger sized bolt and see it that works.
professorbob is offline  
Old 10-22-10, 07:38 AM
  #6  
pan y agua
 
merlinextraligh's Avatar
 
Join Date: Aug 2005
Location: Jacksonville
Posts: 31,273

Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike

Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1428 Post(s)
Liked 697 Times in 353 Posts
Can you heliocoil threads that small?
__________________
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 10-22-10, 09:03 AM
  #7  
Riding Heaven's Highwayson the grand tour
 
Join Date: Sep 2007
Location: Tehachapi Mtns, Calif.
Posts: 737

Bikes: '10 C'Dale Tandem RT2. '07 Trek Tandem T2000, '10 Epic Marathon MTB, '12 Rocky Mountain Element 950 MTB, '95 C'dale R900, "04 Giant DS 2 '07 Kona Jake the Snake, '95 Nishiki Backroads

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
On the boss, if just stripped and still well seated in the frame...., If you can't get a heliocoil that small, I would go to the next closest size up (either metric or SAE) and carefully re-tap the threads and go to a larger bolt.
On the fork...If you email Cannondale's contact/tech suppport folks and actually get a meaningful response (not an automated "thank you for your question and we will get back to you on that.......like NEVER!) please do a follow up post here and share your success story with them.
Good luck.

Bill J.

Last edited by specbill; 10-22-10 at 09:06 AM. Reason: oversite
specbill is offline  
Old 10-22-10, 10:09 AM
  #8  
Senior Member
 
mkane77g's Avatar
 
Join Date: Apr 2009
Posts: 712
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I think Sheldon Brown has a tech page for rivnuts.
mkane77g is offline  
Old 10-22-10, 01:05 PM
  #9  
Senior Member
Thread Starter
 
Join Date: Jun 2005
Posts: 214
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Ha! I hadn't used heliocoils in so long that I had forgotten about them! I'll give that a go, I hadn't really fooled with it at all yet.

I believe the fork is indeed a 1 1/8.

Has anyone else gone from canti's to disk on their front end? I was going to go with road BB7's. I've always felt that I would like a bit more braking power and confidence.

Thanks for the info!
accordionfolder is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ahultin
Tandem Cycling
5
03-29-17 11:02 PM
wvridgerider
Classic & Vintage
10
05-23-15 09:16 PM
titani
Road Cycling
6
10-21-13 04:30 PM
DMadro
Bicycle Mechanics
1
08-11-11 03:48 PM
DMadro
Bicycle Mechanics
1
08-08-11 07:23 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.