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

Asymmetrical Spindle installation

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.

Asymmetrical Spindle installation

Old 03-02-11, 06:18 PM
  #1  
rothenfield1
Senior Member
Thread Starter
 
rothenfield1's Avatar
 
Join Date: Jun 2009
Location: Montereyish
Posts: 2,329
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Asymmetrical Spindle installation

I'm in the middle of installing this square taper SR BB and suddenly started doubting myself on which side the longer end of the spindle goes to. The crank side, correct?
rothenfield1 is offline  
Old 03-02-11, 06:29 PM
  #2  
silver_ghost
Senior Member
 
Join Date: Mar 2008
Posts: 433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Yup. Most times anyway.
silver_ghost is offline  
Old 03-02-11, 10:32 PM
  #3  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 35,964

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 124 Post(s)
Tagged: 1 Thread(s)
Quoted: 4361 Post(s)
Likes: 0
Liked 15 Times in 15 Posts
It's generally the right side that needs the extra room for chainring/chainstay clearance, so long side to the right. If the left needed more room, or the right didn't it would have been symmetrical.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 03-02-11, 10:37 PM
  #4  
davidad
Senior Member
 
Join Date: Feb 2009
Posts: 6,240
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 432 Post(s)
Likes: 0
Liked 60 Times in 55 Posts
You should be able to read the ingraving on the axle from the top of the bike.
davidad is offline  
Old 03-02-11, 11:08 PM
  #5  
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407

Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by davidad View Post
You should be able to read the ingraving on the axle from the top of the bike.
...facing forward.
JiveTurkey is offline  
Old 03-03-11, 08:13 AM
  #6  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 32,179

Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 1408 Post(s)
Likes: 0
Liked 235 Times in 187 Posts
As all of the above posters said, the vast majority of the time the longer end is installed toward the drive side and you shoud be able to read the engraving properly while seated on the bike and looking through a "transparent" bottom bracket shell.

That said, I did run into an exception years ago. I had a '93 Trek 7000 MTB that came with a Tange cup-and-cone bb and a Deore LX 110/74 triple crank. When I first overhauled it I discovered the bb spindle had been installed with the long end toward the non-drive-side. After muttering some uncomplimentary things about the factory incompetence, I proceeded to install it the "right" way only to have the non-drive side crank arm hit the chainstay! Apparently the fat chainstays on this frame required an extra long spindle and reverse installation to clear everything properly.
HillRider is offline  
Old 03-03-11, 01:52 PM
  #7  
silver_ghost
Senior Member
 
Join Date: Mar 2008
Posts: 433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Same thing happened to me overhauling a BB on a customer's bike of similar vintage. That's why my original answer said "most times".
silver_ghost is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tjkoko
Bicycle Mechanics
10
08-01-15 03:25 PM
kehomer
Bicycle Mechanics
2
07-11-14 04:29 PM
rothenfield1
Bicycle Mechanics
7
01-29-12 12:06 PM
jbtute
Bicycle Mechanics
10
10-17-11 10:07 AM
sunstealth
Bicycle Mechanics
4
01-26-10 07:52 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


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.