Shimano/Isis bottom bracket question? Building the ultimate fishing bike ;)

LocustsOfSteel

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I got a shifter kit from sick bike parts for my 2 stroke mountain bike, soon to be "the ultimate fishing bike"...
(more to come on that note soon on a separate thread :D).

I just about have everything installed, i had to add a chain breaker, a crank removal tool, and a shimano bottom bracket tool to my arsenal of tools, and i just now removed the bottom bracket in order to install the new wider square spindle needed for the shift kit (as pictured below), then i ran into my first snag...

I cant seem to figure out how to remove a rather thin "bolt" that seems to hold the bottom bracket, the spindle, and perhaps the bearings together (also pictured below, with me pointing a pencil at the "bolt")...
I have tried my luck with basic tools in order to remove this little b!+ch, but it just wont budge no matter how hard i try. (pliers fit, but vice grips, adjustable wrenches, and my socket set wont fit)

Does anyone know what this problematic "bolt" is called?
What is the name of the proper tool for removing it?
And do you think there's a ghetto way of removing it so i don't have to buy yet another tool lol?

Thank you for any advice i may receive, and sorry about the "carpy" pics from the cell phone i was using lol
 

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You've got mail from SBP.

Ok for the rest of you, what he has is a cartridge style bottom bracket, to use the spindle supplied in the kit requires the "cup and cone" style bearing set up. I attached of photo of the necessary part for clarity.
 

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LOS,

there are tools to take that catridge apart, but as you now know the SBP spindle won't work in it any way.

i had a problem with the BB on my Trek 4500 when i tried to mount the freewheel crank too, i solved it by getting a 73 x 122 cartridge BB from the local bike shop. single bolt in piece, done deal.

you may not be able to go that way with your build. and the longer SBP spindle will put the pedal cranks out further for more clearance anyway.

steve
 
We have had customers us the 125mm cartridge but it can cause chain alignment issues which is why we suggest just spending the $15 to convert it to the "loose bearing" style instead of spending $30 on a new cartridge and potentially having issues.
 
We have had customers us the 125mm cartridge but it can cause chain alignment issues which is why we suggest just spending the $15 to convert it to the "loose bearing" style instead of spending $30 on a new cartridge and potentially having issues.

Loose bearings? Your attachment shows caged ball bearings.
 
True but to us "old timers" this was a term that was used as opposed to the sealed bearings that are in the cartridge style. Old 1 piece bottom brackets also have been called "loose bearing" even though now they even have caged bearings. It it just semantics, I think everyone gets the point.
 
Heh, OK old timer, but for the record I've got kids not too shy of your age.

The next time I overhaul a bike swapping out caged bearings for loose ball I'll refer to all the cussing I do over dropped bearings just semantics, LOL.
 
Good thing I wasn't drinking anything I would have spewed it all over my keyboard, that is funny.:D
 
Well, the other day i went to the local bike store, and i made sure to bring the spindle and the original cartage, when i tell the guy whats going on and hand him the parts he said he had exactly what i need, he went into the back store room and emerged with a part that looked a great deal like you told me to get...

But when i got home and tried to install it i noticed that it was just a hare too wide to fit, and both sides are threaded the same way, as opposed to one side being reverse threaded like the cartage type... needless to say, i was feeling kind of low after a long ride on the bus just to be let down like that:confused:.

So i took my dog for a walk in an attempt to clear my head, and then some kind of freaky miracle moment happened while crossing a bridge over a creek... in the twilight i could just barely see the form of a broken bike in the creek:unsure:!
It had no wheels, derailleurs, brakes, and the frame was beat up pretty bad, but i still carried it home just in case.

When i got back i noticed that the outside of the crank looked EXACTLY like what you recommended Ghost... so then i disassembled it all and cleaned everything up, and in no time i was surprised to find that the whole crank assembly was in fantastic condition, and best of all... It fit both the SBP spindle and my bottom bracket PERFECTLY:D!!!

Yesterday i installed the last bit of the shift kit, and took it for a test ride, and it was really cool, the gear shifting really does properly harness the engines full potential... and then out of nowhere i learned the hard way exactly why the SBP manual recommends to file a couple of notches in the jackshaft... I lost the wide chain and the master link on it due to the gear that holds it sliding down the jackshaft lol:rolleyes:.

I am now filing down that part i was supposed to, tinkering with the rest of the large chain i have left and preparing to go get a new master link.
Once all that is done... I'll rewire my 12v lighting, then get a PVC pipe and cut it into 4 pieces and rig them to attach to my bike's rear rack as fishing pole holders.
 
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