Newb question: bottom bracket replacement
09-16-12 | 01:29 PM
#1
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Newbie
Joined: Sep 2012
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Newb question: bottom bracket replacement
I have an 1960's schwinn bike frame that has a one piece crank and threadleas bottom
Bracket casing.
Without realizing, I bought a cartridge bottom bracket and three piece crankset to match the bB.
My question is, will it be possible to
Use the newer crankset and Bortom
Bracket in my old frame. The frame seems to be threadless where the bottom bracket would go.
Is it possible?
Bracket casing.
Without realizing, I bought a cartridge bottom bracket and three piece crankset to match the bB.
My question is, will it be possible to
Use the newer crankset and Bortom
Bracket in my old frame. The frame seems to be threadless where the bottom bracket would go.
Is it possible?
09-16-12 | 03:13 PM
#2
Senior Member
Joined: Aug 2005
Posts: 33,657
Likes: 1,119
From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
There is an adapter that converts Ashtabula (one piece) bottom brackets to standard English threads. Harris Cyclery has them for about $20. Look here:
https://harriscyclery.net/product/tru...apter-1335.htm
https://harriscyclery.net/product/tru...apter-1335.htm
09-19-12 | 05:49 PM
#4
Mechanic/Tourist
Joined: Apr 2007
Posts: 7,522
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From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
Also, the length of bottom bracket axles varies depending on several factors. Hopefully you ordered a crankset that will be compatible with your frame and drivetrain.
09-20-12 | 01:38 AM
#5
Senior Member
Joined: Oct 2009
Posts: 1,921
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From: England, currently dividing my time between university in Guildford and home just outside Reading
Bikes: Too many to list here!
There is an adapter that converts Ashtabula (one piece) bottom brackets to standard English threads. Harris Cyclery has them for about $20. Look here:
https://harriscyclery.net/product/tru...apter-1335.htm
https://harriscyclery.net/product/tru...apter-1335.htm
09-20-12 | 02:45 AM
#6
Senior Member
Joined: Mar 2008
Posts: 8,687
Likes: 297
Sounds like he already has those parts - assuming he's got the right length for the chain line to line up.
09-20-12 | 04:23 AM
#7
Senior Member
Joined: Oct 2009
Posts: 1,921
Likes: 5
From: England, currently dividing my time between university in Guildford and home just outside Reading
Bikes: Too many to list here!
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