So is this tool worth it?



I've tried the Sheldon tool without much luck. Perhaps I am not giving the PB blaster enough
time.

One think I've learn is you need to use harded washers. The ones pictured were flat
before I started.

I won't even picture the bottom bracket. Shimano. Didn't pay enough attention to the placement
of the washers and total busted the thin center section. Tried hacksaw on the cup and a standard
one makes no progress at all. I guess the thick part is hard steel.

i've gotten really good results using a homemade headset press tool to help remove super stuck fixed bottom bracket cups. its the one made of 18" of threaded rod with two big washers and nuts (two plumbers reducing couplers optional) costs about 7.00 in parts at the hardware store and works beautifully.

https://www.mindspring.com/~d.g1/headset.html

get everything pulled off the frame except the fixed BB cup. spray some PB Blaster / liquid wrench if it looks corroded. keep one nut and washer on the threaded rod on the side where the adjustable cup used to be. the big washer should be up against the bare frame BB with the nut on the outside. push the open end of the threaded rod through the hole of the fixed BB cup and add the park tool fixed cup tool that fits and then add the other big washer and nut. tighten it down slightly past finger tight enough to hold the tool on the fixed cup so there's no potential to slip. get a good angle on the tool so you can put your body weight on it. you can also alternately sit on the floor holding the frame and push with your foot on the tool using your leg strength.

i've rebuilt about a dozen 25 - 30 years old bikes and it hasn't failed me yet.

I did a write up on it on fixed cup removal.

that is a great tool and worth the price if you are going to be installing and removing alot of fixed cups. if you only wish to remove this fixed cup and then use a cart BB save yourself the aggrivation and just have a bikeshop do it.

I tried brooklyn_bike's tool, modified, and I went two for two. I have at least 3 other frames in the basement to try
it on, but I want to get the PB blaster on first.

My modification is
1) I just used the one inch bolt that I used to the Sheldon method.
2) I used a one sided 36m HS wrench. Then put a 18 inch gas nipple with 1 1/2 inch opening on the other end to get
more leverage. I normally use this for removing freewheels.

If it has standard 36mm flats I like this wrench here: https://www.biketoolsetc.com/index.cg...item_id=ZG-FCW

I have that and a clamp to keep it from slipping and it works great. The clamp can be improvised with washers n things and a bolt.

Man, one of those wrenches would be awesome!

As far as a clamp, you could leave the bb spindle and both cups in there, and use the bb spindle with another cup turned the other way around to clamp it on...I've been known to do that when putting in cartridge bb's.

Here you go:

https://www.bikeforums.net/showthread...ight=fixed+cup