Stuck square taper BB - best side to start on? - Bike Forum https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/ Singletrack World Magazine Forum. Come for the bikes, stay for the boll**ks en-GB Sun, 05 Apr 2026 04:41:14 +0000 wpForo 60 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481311 Sun, 21 Oct 2012 18:54:19 +0000 I promise not to tell and there is another thread going about girlfriends so no-one else will see this

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481311 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481310 Sun, 21 Oct 2012 18:52:48 +0000 I probably shouldn't keep telling people how to to it as it's been a good money spinner, but meh :-)

]]> Bike Forum bencooper https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481310 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481309 Sun, 21 Oct 2012 18:48:53 +0000 I wondered if that was possible but mistakenly assumed that there wasn't space for a saw. Turns out there is lots of space (as long as you have a really deep hole saw). Brilliant idea :)

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481309 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481308 Sun, 21 Oct 2012 18:44:11 +0000 Out of interest - how would you get it out using a hole saw? It sounds like there would be a lot of work involved

33mm hole saw, drill bit in the middle goes down the axle as a guide - the saw cuts out the BB cups neatly, leaving the threads behind. I love doing it that way - I quite often get people bringing me bikes with stuck BBs, often after other shops have had a go and given up, and I get it out in 15 minutes ;-)

]]> Bike Forum bencooper https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481308 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481307 Sun, 21 Oct 2012 18:43:18 +0000 kettle full of boiling water on the frame

Interesting idea. I've always tried using a hot air gun before but it's never really worked. Hot water would be able to dump heat in faster so could be a winner. Don't need it now but stored in memory - tx

(I've also tried with hot air on the outside and freezer spray on the inside. Invariably a waste of freezer spray)

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481307 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481306 Sun, 21 Oct 2012 18:41:30 +0000 kettle full of boiling water on the frame

]]> Bike Forum abductee https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481306 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481305 Sun, 21 Oct 2012 18:40:00 +0000 you can just use a hacksaw blade to slot it and get it out that way

Great - that's just what I was going to try next. I smell victory

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481305 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481304 Sun, 21 Oct 2012 18:39:16 +0000 If you get really, really stuck then a hole saw is the way to do it...

Out of interest - how would you get it out using a hole saw? It sounds like there would be a lot of work involved

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481304 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481303 Sun, 21 Oct 2012 18:38:21 +0000 If you've just got the LH collar left, you can just use a hacksaw blade to slot it and get it out that way.

]]> Bike Forum bencooper https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481303 Re: Stuck square taper BB - best side to start on? https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481302 Sun, 21 Oct 2012 18:37:16 +0000 lever? I've got the tool in a bench vice and i'm using the frame as the lever :)

Success - sort of. With the skewer to hold the tool in place I can now use the larger tool. Unfortunately even though the lock ring is alloy it appears to be an alloy of emmental and gruyere so it stripped :(

The surprising news was that the drive side came out using the same technique, leaving the BB stuck in the other half. Nothing a large hammer couldn't fix.

So I've got a stripped locking sleeve stuck in the BB but I'll soak it in WD40 overnight and try and cut it out gently tomorrow. I'm a happy man

]]> Bike Forum leffeboy https://singletrackworld.com/forum/bike-forum/stuck-square-taper-bb-best-side-to-start-on/#post-4481302