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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 12-11-07, 05:34 PM   #1
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NJS Keirin frame BB thread type

Could someone please help. I'm trying to source a bottom bracket for a NJS keirin frame which came without one. I've done a search, It sounds like it's going to be a 109 spindle, but could not confirm if it needs to be british threaded.

Thanks in advance for your advice.
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Old 12-11-07, 05:40 PM   #2
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english threading yes
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Old 12-11-07, 06:06 PM   #3
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match the spindle to the cranks, not the frame. Not all cranksets will use a 109 spindle (a lot will, but not all).

what cranks?
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Old 12-13-07, 11:47 AM   #4
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It's a Sugino 75 crankset. So based on the Sugino bottom bracket I need a 109. Problem is I want to go sealed. And don't want to pay the earth either. Any recommendations?
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Old 12-14-07, 06:24 PM   #5
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bump
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Old 12-14-07, 06:40 PM   #6
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Miche, Campagnolo, Phil Wood. You may have to get a 108 or 110, but it'll work fine. Just make sure you get a BB with ISO taper.
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Old 12-14-07, 08:12 PM   #7
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get the 75 bb
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Old 12-15-07, 01:19 AM   #8
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^srsly. y not?
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Old 12-15-07, 01:28 AM   #9
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Because he wants a cartridge BB, that's why.
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Old 12-15-07, 08:15 AM   #10
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I just ordered a Level and Matsuda-san said the bb thread is JIS - and that Campag doesn't do a JIS bb (correct). So be careful about buying a Phil Wood or Campag. You might need a Hatta bb. Sealed might not be possible unless you get a Shimano bb and use Shimano cranks (Octalink - no Shimano/Sugino compatibility).
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Old 12-15-07, 09:54 AM   #11
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Ive been seeing SO many new Levels rolling around recently. Seems like a lot of people have been ordering them.
What color'd u get?
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Old 12-15-07, 02:53 PM   #12
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Really? Everyone else (Sugino included) says it's an ISO taper.
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