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

Flipping a BB around????

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.

Flipping a BB around????

Old 09-05-06, 09:10 PM
  #1  
FreeRidin'
Senior Member
Thread Starter
 
FreeRidin''s Avatar
 
Join Date: Feb 2006
Location: Boulderado
Posts: 1,474

Bikes: Intense SS, Old spesh P series, ski/snow bike, fixie conversion

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Flipping a BB around????

Ok so I have a truvativ gigapipe BB and have to use a 10mm spacer to make the BB work. Becasue of that huge spacer I can only really run the 4/5 smallest cogs. So I know I can't just put the spacer on the nondrive side of the BB because it just does not fit. So I was thinking I could just flip the whole BB around and have the spacer on the left side, and correcting my chainline. The only thing I guess i couldent do is use a BB mounted chainguide but that does not matter. So is this possible/safe???
FreeRidin' is offline  
Old 09-05-06, 10:26 PM
  #2  
moxfyre
cyclist/gearhead/cycli...
 
moxfyre's Avatar
 
Join Date: Oct 2004
Location: DC / Maryland suburbs
Posts: 4,166

Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
You can't flip a standard English/ISO cartridge BB around because the threading of the two sides is different: the right side is left-hand-threaded while the left side is right-hand-threaded (the normal way). This is to prevent precession from loosening the BB cups over time (you can read the details on Sheldon Brown's site) and is a superior design. If you had a CUP-AND-CONE BB you could flip the spindle, while leaving the cups in the same place, but those are more or less obsolete for other reason.

The spacer won't work on the left side because it's threaded for the right side. It sounds like you have a BB that's seriously mismatched in length. Why can't you just remove the spacer altogether? As far as I know, the gigapipe BBs are just standard ISIS BBs... you can get a new ISIS BB in the right spindle length for about $20 from Nashbar.
moxfyre is offline  
Old 09-06-06, 08:20 AM
  #3  
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438

Bikes: Trek 5500, Colnago C-50

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yeah, that's what I'm wondering too. Why do you need the big spacer if it has you spaced out too far?
Al1943 is offline  
Old 09-06-06, 08:56 AM
  #4  
John E
feros ferio
 
John E's Avatar
 
Join Date: Jul 2000
Location: www.ci.encinitas.ca.us
Posts: 19,711

Bikes: 1959 & 1960 Capo; 1982 Bianchi; 1988 Schwinn KOM-10;

Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 783 Post(s)
Liked 117 Times in 93 Posts
Originally Posted by moxfyre
You can't flip a standard English/ISO cartridge BB around because the threading of the two sides is different: the right side is left-hand-threaded while the left side is right-hand-threaded (the normal way). ...
Of course, one can reverse just the cartridge itself, IF the cups are separable, as on many Campag. and Phil Wood units.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324
Capo: 1960 Sieger (2), S/N 42624, 42597
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
John E is offline  
Old 09-06-06, 09:15 AM
  #5  
moxfyre
cyclist/gearhead/cycli...
 
moxfyre's Avatar
 
Join Date: Oct 2004
Location: DC / Maryland suburbs
Posts: 4,166

Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by John E
Of course, one can reverse just the cartridge itself, IF the cups are separable, as on many Campag. and Phil Wood units.
That's true. I believe the Phil Wood units also use lockrings on both cups that allow for adjustable chainline?
moxfyre is offline  
Old 09-06-06, 12:32 PM
  #6  
FreeRidin'
Senior Member
Thread Starter
 
FreeRidin''s Avatar
 
Join Date: Feb 2006
Location: Boulderado
Posts: 1,474

Bikes: Intense SS, Old spesh P series, ski/snow bike, fixie conversion

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Oh wow, I totaly forgot the right side is left hand threaded. Guess it not going to work.

As for just removing the spacer that wount work either the BB is a 128 spindle and I need a 118
FreeRidin' is offline  
Old 09-06-06, 01:51 PM
  #7  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 31,915

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: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 1317 Post(s)
Likes: 0
Liked 145 Times in 119 Posts
Originally Posted by FreeRidin'
As for just removing the spacer that won't work either the BB is a 128 spindle and I need a 118
Then why not get the correct one?
HillRider is offline  
Old 09-06-06, 03:29 PM
  #8  
FreeRidin'
Senior Member
Thread Starter
 
FreeRidin''s Avatar
 
Join Date: Feb 2006
Location: Boulderado
Posts: 1,474

Bikes: Intense SS, Old spesh P series, ski/snow bike, fixie conversion

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by HillRider
Then why not get the correct one?
Because I'm cheap!
FreeRidin' is offline  
Old 09-06-06, 04:40 PM
  #9  
erader
Senior Member
 
erader's Avatar
 
Join Date: Feb 2006
Location: silicon valley
Posts: 1,774
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by John E
Of course, one can reverse just the cartridge itself, IF the cups are separable, as on many Campag. and Phil Wood units.
but you know what that accomplishes: nothing !

ed rader
erader 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.