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 11-02-06, 11:22 AM   #1
newbietotwo
Member
Thread Starter
 
Join Date: Sep 2006
Bikes:
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Specialized Crankset

I just bought a used tandem and need to get pedals for it. Does anyone know the threads on Specialized crankset?

Thanks..
newbietotwo is offline   Reply With Quote
Old 11-02-06, 11:36 AM   #2
ElRey
Senior Member
 
Join Date: Aug 2005
Location: New Jersey
Bikes: Colnago C40 HP, Aegis Trident, Cannondale tandem
Posts: 491
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
pedal threads are pretty much universal.
ElRey is offline   Reply With Quote
Old 11-02-06, 11:59 AM   #3
masiman
Senior Member
 
Join Date: Oct 2005
Bikes:
Posts: 1,735
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
+1 on the pretty much standard. Unlikely you have French threading or that crankset is a one piece. You'll just have to decide what pedals you want to put on it. If you are itching to get out on the bike you can swap pedals from other bikes onto the arms. From Sheldon's website:

Thread Sizes
- Most pedals have 9/16" x 20 tpi threads.
- Pedals for one-piece cranks are 1/2" x 20 tpi.
- Older French bicycles used a 14 mm x 1.25 mm thread, but these are quite rare.

In the early 1980s, Shimano attempted to popularize a very large thread size, which they called "Dyna Drive." This system was designed to place the pedal bearing inside of the crank, so that the foot could be slightly below the pivot point of the pedal bearing. This was believed to offer biomechanical advantages, but the system was not a commercial success, and has been abandoned.

Pedal Threading
Standard-3-piece cranks 9/16" (0.56") x 20 tpi 14.28 x 1.27 mm
One-piece (American) Cranks 1/2" (0.50") x 20 tpi 12.7 x 1.27 mm
Old French 14 mm x 1.25 mm 0.55" 20.32 tpi
masiman 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 05:25 PM.