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

Bottom bracket install problem-NDS cup does not fit

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.

Bottom bracket install problem-NDS cup does not fit

Old 05-23-19, 06:34 AM
  #1  
El Gato27
Senior Member
Thread Starter
 
Join Date: Dec 2014
Location: Texas
Posts: 219

Bikes: '88 Peugot 12 spd road bike, Nishiki hybrid, JC Penney 10 spd

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Bottom bracket install problem-NDS cup does not fit

Removed a bottom bracket that was rough and rusted. Went to the bike Co-op and picked up a suitable replacement. I did not get a non-drive side cup since I had a couple at home.

I installed the bottom bracket, drive side first without issue. I could not get either of the NDS cups to thread in. I removed the bottom bracket and was able to thread in both NDS cups without any problem. Tried to slide the cups onto the bottom bracket and they will not slide on, they are too small, about a mm. Tried the cup I had just removed and it will not fit either of the bottom brackets (new or old).

Ive installed a few bottom brackets and never had this issue before. I thought these were interchangeable.

Anyone ever had this problem? Im about to order a new one but thought I would post this first. Thank you.
El Gato27 is offline  
Old 05-23-19, 07:17 AM
  #2  
easyupbug 
Senior Member
 
Join Date: Jan 2013
Posts: 1,123

Bikes: too many sparkly Italians, some sweet Americans and a couple interesting Japanese

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 147 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
I don't really understand all you are conveying but am aware of at least half a dozen differing threadings on cups and there are probably many more when you consider long obsolete cups, are you sure the ones you have match? Photos of the parts would help.
easyupbug is offline  
Old 05-23-19, 08:19 AM
  #3  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 11,585

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1708 Post(s)
Likes: 0
Liked 29 Times in 25 Posts
Why should one company offer an internal duplicate to another's? They sell complete BB units complete with the NDS cup that works with their bearing/DS cup unit. They see no need to match the internal aspects of the cup to anyone else's. Cheapest path is to go back to the coop with that BB in hand and see if you can match up a NDS cup they might have. Andy
__________________
AndrewRStewart
Andrew R Stewart is offline  
Likes For Andrew R Stewart:
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
skijor
Foo
0
10-24-10 08:36 AM

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.