I need to remove a stuck fixed cup; the BB is a shimano type square taper sealed unit. I plan on soaking it in PB blaster. The tool I use for BB removal and installation is this unit from LIFU:



I just hold it place with my hand while turning the tool with a large crescent wrench.

This is going to be a tough removal process. Is there a good way to run a bolt of the right threading through the tool to screw it onto the axle? That will hold the tool securely in place while I try to turn it.

Is there something better than shooting the BB full of PB blaster in trying to free up the fixed cup? Is there a better tool than this that I should get?

As a bit of an aside, I picked up this pretty much immaculate looking 1996 Bianchi Volpe earlier this year. The paint job is almost perfect and the parts look very good. But whoever put this together was clearly allergic to grease and probably decided to leave the bike out in the rain for a day or two as a sort of experiment. I had use a hacksaw to get the stem off; the pedals were more or less terminally stuck as well. And, of course, the fixed cup is stuck as well,

Remember to turn it CCW. Once the spindle is out of the way I usually use threaded rod and washers to hold the tool in place. Roger

You are correct, of course, in thinking that the trick is holding the removal tool flat against the BB.

My trick is to chuck my removal tool vertically in my bench vise, then thread the whole bike frame onto the tool. Take a minute to figure out which way you have to rotate the bike frame to unscrew the BB. I've never had this process fail.

Turn it Clockwise to remove, not CCW

https://www.amazon.com/gp/product/B00...d_bhz_bw_c_x_1

[MENTION=351052]techsensei[/MENTION]: sweet, Thank you!

Here's what I do-


You need an 8X1mm bolt, not the more common 8X1.25mm.
Easily obtained at the better auto parts store.
Your current crank bolt might be the right length??

This is also the best way I've found to do it. You need a BB removal tool that has flats on the outside though. Bolt the BB tool to the BB using the crank bolt threading, then turn the tool with a large crescent wrench.

You're lucky that your bike uses the BB tool. Try getting a stuck fixed cup out of a bike that uses the old, non-sealed bearings. It's virtually impossible.

I've used a very similar method for those BB's that use the PARK HCW-4 tool.
One whack with the 4 lb. hammer and it's loose.

Too short for my crank bolt but yes this is what I am looking for, thanks!

Yeah but you can get a vise on old school fixed cup; you can't with the shimano sealed units.

There are several methods, but bolt the remover to the BB cup. You'll be glad you did. If you can get a fixed wrench that fits you'll be better off if\when you whack it with a hammer. My favorite is a dead blow hammer.
Mounting the removal tool in a vice is an interesting idea. I've done it for freewheels, but never for BBs. You would need lots of room on your work bench to swing the frame around. You would get lots of leverage though.
There is an easy to remember which way to turn a BB cup on either side.
With the wrench pointing down at the ground, move the wrench towards the rear of the bike.

I always use the left hand/right hand rule. For right hand threaded things, point your right thumb in the direction you want the bolt/nut/cup/cone to go, turn the wrench in the direction that your fingers curl. You can do the same with left hand threaded things with your left hand. Of course I only really ever use it in real life when I'm working with left hand threaded things or if I'm hanging upside down/leaning over something and get confused.

But yes, yours is more useful if someone doesn't know which side is right hand threaded and which is left hand threaded.

A big C-clamp has been good enough for me.
Although a long bolt is probably a bit quicker and neater.

Only have to swing the bike about an inch or so. Once it gets started, the rest is easy.

Depending on the state of disassemble of the bike, putting it up in a vise can be a bit unwieldy. I just use a length of pipe over whatever wrench I am using to increase the leverage.