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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-20-06, 04:38 PM   #1
Bone
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Took the plunge

Monday I won a bid on e-bay for a vintage steel Italian track frame and fork. I am beginning to source parts and make decisions*about things I have never delt with before. My first issue is deciphering Campy bottom bracket nomenclature to figure out which BB to buy. Obviously, I need one with Italian Cups, but which spindle is appropriate for a fixie? I saw one listed as a "Pista" BB with 70-P-120 stamped on the spindle. The 70 I assumed is for a 70mm BB, the P pista?, and the 120 the overall lenght?? Then I saw another,supposedly for a track bike Stamped 70-SS. I thought I had it figured out and now am left with confusion. Can anybody shed any light on this for me. Thanks, Bone
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Old 10-20-06, 04:50 PM   #2
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You'll probably need either a 111mm spindle or 109mm spindle.
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Old 10-20-06, 05:11 PM   #3
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To all of the people throwing mad cash down on a bike without even researching what else to buy, would you like to kick some of that down to me? I mean, I've got the knowledge, but def. not the spendies.
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Old 10-21-06, 07:00 AM   #4
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To all of the people throwing mad cash down on a bike without even researching what else to buy, would you like to kick some of that down to me? I mean, I've got the knowledge, but def. not the spendies.
Too true.

A PRIMER: Your spindle length depends on the cranks that you will use. Spindle length + cranks = chainline, which should match the chainline of your hubs. I can't believe I have to refer to this for somebody who just dropped mad coin, but www.sheldonbrown.com/fixed
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Old 10-24-06, 02:28 PM   #5
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So, no one knows what the numbers on the spindles mean. I understand the chainline but still have no idea what 70 ss means. Thanks, Bone
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Old 10-24-06, 02:33 PM   #6
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Quote:
Originally Posted by Bone
Monday I won a bid on e-bay for a vintage steel Italian track frame and fork. I am beginning to source parts and make decisions*about things I have never delt with before. My first issue is deciphering Campy bottom bracket nomenclature to figure out which BB to buy. Obviously, I need one with Italian Cups, but which spindle is appropriate for a fixie? I saw one listed as a "Pista" BB with 70-P-120 stamped on the spindle. The 70 I assumed is for a 70mm BB, the P pista?, and the 120 the overall lenght?? Then I saw another,supposedly for a track bike Stamped 70-SS. I thought I had it figured out and now am left with confusion. Can anybody shed any light on this for me. Thanks, Bone
70-SS is an Italian threaded (70mm) Nuovo Record Strada (road) bottom bracket with a 115.5mm spindle.

70-P-120 is an Italian threaded (70mm) Record Pista (track) bottom bracket with a 109mm spindle.
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Old 10-24-06, 07:04 PM   #7
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Quote:
Originally Posted by sashae
70-SS is an Italian threaded (70mm) Nuovo Record Strada (road) bottom bracket with a 115.5mm spindle.

70-P-120 is an Italian threaded (70mm) Record Pista (track) bottom bracket with a 109mm spindle.
Now that's dropping some ****in' knowledge.
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Old 10-24-06, 07:14 PM   #8
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Originally Posted by Aeroplane
who just dropped mad coin[/url]
I like that....mad coin...lol
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Old 10-24-06, 07:34 PM   #9
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also, the 120 refers to the rear spacing the bb is designed to work with..
there is another (quite unusual) older model of pista spindle for 110 spacing
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Old 10-25-06, 08:23 PM   #10
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Sashae and Coelcanth,
Thanks, I really appreciate the info. Now I'm getting somewhere. Bone
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Old 10-26-06, 12:57 PM   #11
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Quote:
Originally Posted by sashae
70-SS is an Italian threaded (70mm) Nuovo Record Strada (road) bottom bracket with a 115.5mm spindle.

70-P-120 is an Italian threaded (70mm) Record Pista (track) bottom bracket with a 109mm spindle.
is 109mm for older campy track cranks? I've had two campy BBs one loose ball and the other, the current pista BB were both 111 symmetrical. Maybe we're talking about different component combinations?
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