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80s Bottom Bracket (Nishiki) -- which tool?

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80s Bottom Bracket (Nishiki) -- which tool?

Old 03-11-18, 06:45 AM
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specialmonkey
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80s Bottom Bracket (Nishiki) -- which tool?

I need to service or replace this BB, but haven't seen one like it before, I have a BB tool, so think I can remove the lock ring, however both side have flats not along the cicumference but in the diameter, seemingly -- is there a special tool for these flats, or one that I can use in lieu of?



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Old 03-11-18, 07:20 AM
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Crescent wrench
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Old 03-11-18, 07:38 AM
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Hook Wrench.
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Old 03-11-18, 07:39 AM
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A good crescent wrench, not a cheap one, and bolt the wrench to the fixed cup to prevent it slipping.
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Old 03-11-18, 07:42 AM
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wrk101
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Actually, the Park HCW-11 is made for that style BB. In working on old bikes, you will eventually acquire several BB tools.
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Old 03-11-18, 08:33 AM
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Originally Posted by wrk101 View Post
Actually, the Park HCW-11 is made for that style BB. In working on old bikes, you will eventually acquire several BB tools.
Yes, once you get the lockring off, the HCW-11 is the preferred tool. If the adjustable cup isn't too tight, a 16mm cone wrench will fit the raised flats. But the HCW-11 provides a more secure grip.
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Old 03-11-18, 08:35 AM
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Thanks

Thanks for the suggestions!
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Old 03-11-18, 08:39 AM
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You should be able to clean the fixed cup on the drive side without removing it. They tend to be installed very firmly hence the name fixed cup. If you friendly with a local shop they may loosen the cups for you.
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