Bottom Bracket / Crank options
#1
Thread Starter
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Joined: Nov 2014
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Bottom Bracket / Crank options
Hi,
I recently bought an old Columbia road bike and have since converted it to a fixie. I am looking to replace the one piece crankset with something a lot newer and lighter. I can not figure out which type of bottom bracket to purchase with this type of shell.
I recently bought an old Columbia road bike and have since converted it to a fixie. I am looking to replace the one piece crankset with something a lot newer and lighter. I can not figure out which type of bottom bracket to purchase with this type of shell.
#2
Bianchi Goddess


Joined: Apr 2009
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From: Shady Pines Retirement Fort Wayne, In
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You need a converter or adaptor. I assume your keeping this a SS so you just need a BNX converter and crank.
This is the easy way, Amazon.com : Pyramid M x 3 Piece Bottom Bracket Set Conversion Kit : Bottom Bike Brackets And Accessories : Sports & Outdoors

This is the better way since you can use a better quality BB and have a bigger selection of cranks. https://www.amazon.com/Aluminum-Botto...bottom+bracket
This is the easy way, Amazon.com : Pyramid M x 3 Piece Bottom Bracket Set Conversion Kit : Bottom Bike Brackets And Accessories : Sports & Outdoors

This is the better way since you can use a better quality BB and have a bigger selection of cranks. https://www.amazon.com/Aluminum-Botto...bottom+bracket
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
#3
Welcome to C & V. You need a three piece conversion kit, something like this. You may need a different spindle to find the proper chain line.
Amazon.com : Pyramid M x 3 Piece Bottom Bracket Set Conversion Kit : Bottom Bike Brackets And Accessories : Sports & Outdoors
Edit: Late to the party again.
Amazon.com : Pyramid M x 3 Piece Bottom Bracket Set Conversion Kit : Bottom Bike Brackets And Accessories : Sports & Outdoors
Edit: Late to the party again.
#4
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Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)
Before you go much further, is that a crack between the down tube and bottom bracket shell?
#6
Bianchi Goddess


Joined: Apr 2009
Posts: 28,907
Likes: 4,152
From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
#9





