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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 08-11-08, 10:54 AM   #1
THEVERGE
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Need help picking bb

Hi all. I just recently picked up a SE Lager frame for $20. I need to get a bb for it, but I dont know that much about bb sizing. I am going to be using an Origin 8 track crank. So I need some help picking the right bottom bracket.

Thanks!
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Old 08-11-08, 12:01 PM   #2
Rodeo
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You probably will need a 103 BB if your crankset is like this one:

http://harriscyclery.net/itemdetails.cfm?ID=2672
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Old 08-11-08, 01:09 PM   #3
THEVERGE
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Thats the exact one. Now what do the bottom bracket measurements mean? (e.x. 68x103mm) what do those numbers relate to on my frame?
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Old 08-11-08, 01:12 PM   #4
bryyando
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not meaning to threadjack but i don't think i need to make a new topic seeing how this is on the same lines. what bb do i need for these?
http://www.thebikebiz.com/product_p/trk-cr-sug05.htm
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Old 08-11-08, 01:16 PM   #5
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Quote:
Sugino RD single speed crank set. An economically priced track/single speed crank set. A good option for road conversions and budget track bikes. Available with 165mm crankarms only. Comes with a Kyoto Loco 46 tooth 130 bcd 1/8" chainring. Compatible with a 103 JIS square taper bottom bracket.
Says it right there.
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Old 08-11-08, 01:22 PM   #6
vbwstripes
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Quote:
Originally Posted by THEVERGE View Post
Thats the exact one. Now what do the bottom bracket measurements mean? (e.x. 68x103mm) what do those numbers relate to on my frame?
68, english frames, is your bb shell width parallel to the spindle, and 103 is your spindle length.
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