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Builder's Corner Restoration and preservation. Keep them running in perfect shape. What size is your bottom bracket?

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Old September 26th, 2015, 6:14 PM   #1
Joshblank
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Default Fat chance team comp with bullseye crank

Hi. This is my first post on this forum. I had been wanting a yo eddie for a while and im generally pretty broke and have to piece together nice bikes slowly over time. Finally a fully built but rusty fat chance team comp fell into my lap. It has a special splatter pain job and came with bullseye wheel set and cranks. The bb is a sealed barring and the cups are almost entirely round with a small flat part on one end. Does anyone know if these are threaded? Can i swap to a square taper bb so i can run other cranks? If anyone has info on this iwould appreciate it. Also if it is threaded where do i find the tool to turn it.

Thanks
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Old September 27th, 2015, 10:46 AM   #2
mainlyfats
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Hi. This is my first post on this forum. I had been wanting a yo eddie for a while and im generally pretty broke and have to piece together nice bikes slowly over time. Finally a fully built but rusty fat chance team comp fell into my lap. It has a special splatter pain job and came with bullseye wheel set and cranks. The bb is a sealed barring and the cups are almost entirely round with a small flat part on one end. Does anyone know if these are threaded? Can i swap to a square taper bb so i can run other cranks? If anyone has info on this iwould appreciate it. Also if it is threaded where do i find the tool to turn it.

Thanks
For sure you can. You can either buy the full (metric, I think) set-up from Phil Wood, or troll eBay/go to an OG mountain shop and try and find an original Fat City axle. Bearings aren't hard at all, lots of threads on that including the new part # for NTN.

Some ideas for getting it out if you have to:

http://forums.mtbr.com/vintage-retro...ps-753206.html

Do you really have to though?
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Old September 29th, 2015, 1:56 PM   #3
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these are images of the cups and after sticking my finger inside i realize there are threads. so this is not a press fit on my team comp. and the previous forum only deals with happering press fits out. there must be a tool to grab and twist these cups.... any help will be much apreciated...
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Old September 29th, 2015, 4:27 PM   #4
mainlyfats
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these are images of the cups and after sticking my finger inside i realize there are threads. so this is not a press fit on my team comp. and the previous forum only deals with happering press fits out. there must be a tool to grab and twist these cups.... any help will be much apreciated...
I don't think so, man... I think you have the Euro/Fat-specific version of this: http://thumbs4.ebaystatic.com/d/l225...C_FHTVsiKg.jpg
The threads are inside the press cup for adjustment, but not in the shell of the frame. I could be wrong, but someone would have purposely altered your frame if I am.

It may be time to take it to one of the original MTB shops in your area and look for the lifer mechanic. Bring a six pack.
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Old October 1st, 2015, 12:07 PM   #5
I-ROBOT
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The existing BB shell would not be thick enough for threading after it had been reamed to size for the press-fit bearings. I don't have any experience with the bullseye bottom bracket but I know a couple of the guys in the shop put them in their personal bikes.

Good Luck
Scott
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