Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

How to determine the chainline

Search
Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

How to determine the chainline

Thread Tools
 
Search this Thread
 
Old 07-19-06, 04:04 AM
  #1  
Retro-nerd
Thread Starter
 
georgiaboy's Avatar
 
Join Date: Mar 2005
Location: Morningside - Atlanta
Posts: 1,638

Bikes: 1991 Serotta Colorado II, 1986 Vitus 979, 1971 Juene Classic, 2008 Surly Crosscheck, 1956 Riva Sport

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked 57 Times in 39 Posts
How to determine the chainline

Looking to replace my present Shimano 44-32-22 crank on my commuter bike. Would like install a double with 46/36 chainrings. The spec says the chainline is 43.5mm.

How do I determine if a chainline of 43.5mm will work on my bike? How do I determine chainline amount for my bicycle?
georgiaboy is offline  
Old 07-19-06, 05:43 AM
  #2  
Senior Member
 
thomson's Avatar
 
Join Date: Dec 2003
Posts: 3,333
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It means the Shimano wants the middle of the 2 chainings to be 43.5 mm from the side of the seat tube. The only way to adjust this is to change bottom brackets. Generally each crank recommends a specific spindle size of bottom bracket.
thomson is offline  
Old 07-19-06, 05:55 AM
  #3  
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Posts: 9,161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Side, or centerline?
__________________
Stacey 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



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.