BB86.5 removal

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Squawk
Posts: 115
Joined: Tue Nov 12, 2013 19:58 pm

BB86.5 removal

Postby Squawk » Sat Jul 13, 2019 17:51 pm

Hey all,

Any suggestions for a decent home made solution for removing an 86.5 BB? Paying over £35 for a tool I'm likely to use once seems ludicrous, especially since I already bought a BB removal tool for my last bike (used once), then bought a bike with a different type of BB...

I tried the simple version of a thick wooden dowl and whack it with a hammer - no joy.

Cheers

thistle (MBNW)
Posts: 2349
Joined: Mon Sep 07, 2009 17:37 pm

Re: BB86.5 removal

Postby thistle (MBNW) » Mon Jul 15, 2019 10:50 am

Do you want to remove just the bearing or the bearing cups?

On my BB30 there was a circlip hidden behind the bearing which needed removing before you could knock them out...

keef66
Posts: 12801
Joined: Tue Apr 29, 2008 09:46 am

Re: BB86.5 removal

Postby keef66 » Mon Jul 15, 2019 11:28 am

Think you need something metal rather than wood to transmit the whacking force to where it's needed, otherwise you're on the right lines. Just make sure the BB shell is well supported.

I have a very large flat bladed screwdriver which I have earmarked for just this job if my pressfit BB ever needs replacing.

User avatar
Sandyballs
Posts: 650
Joined: Fri Aug 12, 2011 22:03 pm

Re: BB86.5 removal

Postby Sandyballs » Mon Jul 15, 2019 19:58 pm

Having done this several times without the correct tool I can confirm it takes a fair whack to move them, always used some old metal tubing and laid the frame across my legs making sure if the tube goes through it’s not going to get your legs or boy garden.


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