I’ve searched the forums and internet and tried to remove my BB (Ultegra 6500) but can not shift the thing. Cranks came off OK.
When I spoke to a bike store they told me I needed Park Tool BBT-22 but I’ve tried turning the nut towards the front of the bike (I understand this is corrrect) but no chance of it moving. I’m thinking I am missing another tool. I put tons of pressure with a wrench and not budging. I haven’t got a LBS to take it to for advice.
Here are the picture of the BB.
The right and left are slightly different with the right side having a type of cap. Is there another tool I should be using to remove this first.
I’m absolutely stuck so for all you bike techs please help.
You definitely have the right tool. You could be having some trouble because the cups could have fused to the frame. If they were installed without grease or some type of anti-seize compound, they could be seriously stuck.
That BB has a lockring. To remove it, you need a lockring remover. You can turn on that thing all day with the BB tool in the pic, you are just going to tighten the BB against the lockring.
I don’t remember the exact name of the tool you need, probably called a lockring remover, most likely will have some sort of BB designation from park. I am posting this from my phone or I would try and look it up for you.
Remove the Lockring in the second pic, and then use the tool you have to remove the BB. I am guessing that this is actually a 7700 BB, I don’t remember and Ultegra one with a lockring.
That will only work to remove the non-drive side (left) cup (picture 2 above). That cup has the notches on the outer edge of the cup. The drive-side cup (picture 1) doesn’t have the necessary notches for that tool to work. The tool the OP has will work on either side.
I don’t that pic shows a lockring (like the 7700 has). If you look at the pic closely, it has the internal splines for the BBT-22 to work. It doesn’t appear to be a separate lockring despite the notches on the outer edge of the non-drive side cup.
I am looking at the pic on a really small screen on a phone, so you may be correct. I just don’t remember a BB from Shimano that had the Lockring notches but no lockring.
It has been a few years though, and I no longer turn wrenches for a living, so I could be wrong.
Also, if you find it hard to remove the drive-side first, you can use a skewer and an adjustable wrench to loosen it up. There’s a picture of this off the linked page from Park.
I don’t recall the Ultegra lockrings having those notches either, but it has been a while since I worked on anything other than external bearing stuff. In any case, we can’t all be right all the time, unless of course you ask my wife.
The only ones who seem to disagree are Record10Carbon, who has mechanic certifications from every school in the country, and myself who worked for 10 years as a mechanic.
But, everyone loves a democracy right?
If you do have a lockring on that BB, which I can’t tell from your pic, and you keep using that tool you have with more pressure, you will strip out the notches on the BB, making it nearly impossible to remove.
