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

Trek BB90 removal- 2015 Domane

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.

Trek BB90 removal- 2015 Domane

Old 07-19-20, 06:06 PM
  #1  
MikeEckhaus
Senior Member
Thread Starter
 
Join Date: Aug 2012
Posts: 195
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Trek BB90 removal- 2015 Domane

Went to remove the bottom bracket bearings for a routine re-lube and reinstall. Didn't need replacements. This bike has a 2 piece plastic tube that sits between the bearings and is captured between the bearings and the frame. Drive side was easy because the tube on that side had a larger ID than the bearing, so a Park bearing removal tool worked immediately. Non-Drive side the tube was the same ID as the bearing, so I couldn't get a tool to engage on the back side of the bearing. I wound up deforming the non-Drive side tube so I could pull it through to the drive side, so then I had to reshape it to put it back in. Can anyone recommend a tool that can grab the back of the bearing with only a thin window and then pull it out?

fyi, the plastic shell is this:

https://www.trekbicyclesuperstore.co...mano-13303.htm
MikeEckhaus is offline  
Old 07-19-20, 10:33 PM
  #2  
cpach
Senior Member
 
Join Date: Oct 2009
Location: Mt Shasta, CA, USA
Posts: 1,857

Bikes: Too many. Cannondale SuperSix, Trek Remedy 8, Trek Crossrip+ get the most ride time.

Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 413 Post(s)
Liked 200 Times in 159 Posts
A blind puller like this would probably work: https://www.endurobearings.com/produ...lind-hole-set/ .

I'd honestly recommend against removing press fit/slip fit bottom brackets when they don't need replacement, particularly on BB90 when the bearings are mated directly to the carbon. It just creates more opportunity to damage the bearings or shell.
cpach is offline  
Old 07-20-20, 01:56 PM
  #3  
katyjcrow
Junior Member
 
Join Date: Apr 2015
Posts: 23
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time in 1 Post
If you’re not going to replace the bearings and they are still smooth running, leave them in. There is nothing to service on them. Clean the outside, put a very little grease on the inside of the seals and reinstall the cranks. If installing new bearings, get the BBinfinite and follow their video.
katyjcrow is offline  
Old 07-26-20, 07:56 PM
  #4  
MikeEckhaus
Senior Member
Thread Starter
 
Join Date: Aug 2012
Posts: 195
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Likes: 0
Liked 5 Times in 3 Posts
Thanks for the responses. I agree, it's best to remove the bearings only when replacing, but I still need a good tool. The one cpach linked looks like a great option. I'll most likely pick one up.
MikeEckhaus is offline  
Old 07-27-20, 04:40 PM
  #5  
Barry2 
LRP=HR
 
Join Date: Sep 2019
Location: SF Bay Area
Posts: 850

Bikes: 79 Holdsworth Special, 93 C-dale MT3000 Tandem, 96 C-dale F700CAD3, Two Cervelo R3's 2011 & 2018, JustGo Runt, Ridley Oval, Kickr Bike 8-)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 320 Post(s)
Liked 314 Times in 199 Posts
Puller

I went cheap and got one of these from BearingProTools.
Plus I didn't want to bang out the bearings, just pull them out.

Barry
Barry2 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 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.