Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the May's Giveaway: Win the LIVALL PikaBoost 2 E-bike Conversion Kit


Stuck cup
#1
Hi

I have an ISIS BB that isn't coming out. Basically I got the non-driveside off with a LOT of effort but it's gone now. When I try the driveside the cup simply won't move (yes, I am trying to undo it the correct way). I have reached the stage where I simply don't have the strength to push any harder and it hasn't even shifted; and the 8mm allen key I use to turn the tool is bending a worrying amount.

Anyone got any tips for dislodging this stubborn BB? It needs to go in the skip as it's got WAY too much play (though to be fair it's lasted two years), and I'm running out of options. If needs be I'll try and bribe a mate to undo it, but I'm sure there has to be another way of shifting this other than borrowing a bodybuilder.
  Reply
#2
Does it use this sort of tool:

[Image: 104371419.jpg]

If so, try clamping the tool in a vice and turning the frame. If you have a tool with a handle fitted, try fitting a piece of metal pipe over the handle to make the lever longer. Spray it with liquid spanner/wrench and let soak first as well. If you still have no joy, you could ask the LBS to have a go.

Make sure you put plenty of grease on the threads of the new one when you fit it to stop it seizing again. Smile
  Reply
#3
Exact same thing happened to me a few months ago. I soaked it in GT85 over night then tried again. I had tow do this for two days. I finally got it I used the longest wrench I had.(for leverage) I was actually wrestling with the damn frame, if I had video and posted it, it would have been hilarious. But because of the way those bb tools are you have to sort of press them in and turn at the same time. But it just took BRUTE FORCE to finally remove it.
  Reply
#4
Hi guys

Got it all sorted in the end. I tried various lengths of pipe and failed. What was worrying was how far the 8mm Allen key attached to the tool bent, but still no joy.

I eventually gave up and handed it to the LBS, who had a much better tool (mine was actually getting shredded by the cup!) and popped it off with a HUGE length of pipe and a lot of brute force. I've now put a fairly tired spare BB and crankset on until I can afford a decent set.

What was really staggering was when the BB came out the entire shell was filled with mud and gunk!
  Reply
#5
Awesome, glad to hear a happy ending. It's always a great feeling finally overcoming a problem like that.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
35,485
04-14-2021, 01:28 AM
Last Post: Jesper
 
4,884
07-22-2020, 07:08 PM
Last Post: Jesper
 
3,502
03-08-2020, 02:34 PM
Last Post: G_M
 
8,639
02-06-2016, 07:17 PM
Last Post: Lighttower
 
12,825
05-19-2015, 08:48 AM
Last Post: alexwang32
 
12,298
10-24-2014, 04:07 PM
Last Post: cny-man
 
9,860
02-19-2014, 03:33 AM
Last Post: GeorgeET
 
14,552
07-17-2013, 12:11 PM
Last Post: nfmisso
 
14,220
06-25-2013, 02:25 PM
Last Post: bphodges

Forum Jump:

[-]
10 Latest Posts
First long distance ride..
Today 11:26 AM
Massive Chainring redux
Today 07:03 AM
Is anyone riding with music?
Yesterday 09:49 PM
Great Giro
Yesterday 08:32 PM
Quiet is good
Yesterday 09:38 AM
What is your favorite MTB trail/route in...
05-28-2025 06:55 AM
Wearable Fitness Trackers
05-28-2025 06:47 AM
The deadliest U.S. counties for cyclists
05-28-2025 06:28 AM
POLL: Are non-recumbent riders looking a...
05-28-2025 06:21 AM
The great thing about trikes
05-27-2025 10:39 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Flowrider
16 posts
no avatar 2. Painkiller
16 posts
no avatar 3. GirishH
14 posts
no avatar 4. rydabent
13 posts
no avatar 5. SPINMAN
13 posts