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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 11-18-12, 09:46 PM   #1
Skankingbiker
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Help with bottom brackets

Building up an all-city nature boy frame. Using Suginio RD cranksets. Need a 68x103 bb. Don't want to splurge on a phil wood, but dont want cheapy shimano either.

What is the deal with alum vs plastic cups? I am looking at sugino bottom brackets, some have both side plastic cups, other have both sides alum--both priced the same. Is one better than the other?

Also, is the origin 8 BB any good?

thanks.
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Old 11-18-12, 09:59 PM   #2
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I have no first hand experience with the Sugino bb but I use a Tange bb on my bike and a Shimano bb on my brother's bike, both seems to be holding up pretty good. I say go with what you can afford now and upgrade it to something better when it needs to be replace.
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Old 11-18-12, 10:04 PM   #3
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Metal cups are always better than plastic in the long run although both are near identical in proper use and installation. A good choice that doesn't break the bank is either Shimano's UN55 or UN54 give or take a couple of dollars if you rather have a metal or plastic cup respectively.

I have not owned a origin 8 BB but origin 8 is not a really reputable brand when quality and longevity comes to mind, very inconsistent with most wares not lasting very long. A great example of getting what you pay for however! This is especially true when a BB is one of the components you wouldn't want to go the bottom of the barrel to look for.

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Old 11-18-12, 10:12 PM   #4
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fwiw, currently every one of my bikes has a cheapo Shimano BB. great value
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Old 11-19-12, 07:18 AM   #5
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fwiw, currently every one of my bikes has a cheapo Shimano BB. great value
This.

I have a Phil BB on one bike. The one that's made from leftover material from the space shuttle and UFOs. I have cheap Shimano BBs on other bikes. I can't tell the dif. Those shimano BBs have survived everything I've thrown at them.
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Old 11-19-12, 08:24 AM   #6
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This is coming from instinct. Don't buy a bike part that has plastic in it, unless that's normal to have in that part. Like a bar end.
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Old 11-19-12, 08:31 AM   #7
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Those 'cheapy' shimano ones last long and are strong, have one in my Masi and probably getting one for the cinelli.
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Old 11-19-12, 08:42 AM   #8
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Originally Posted by Skankingbiker View Post
What is the deal with alum vs plastic cups? I am looking at sugino bottom brackets, some have both side plastic cups, other have both sides alum--both priced the same. Is one better than the other?
You have it backward. Sugino BBs have metal cups and some Shimano BBs have a plastic non drive-side cup, which isn't a big deal.
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Old 11-19-12, 08:50 AM   #9
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The non-drive side cup on a modern BB does just slightly above nothing at all. So being made of plastic does not matter too much,
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Old 11-19-12, 10:27 AM   #10
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You have it backward. Sugino BBs have metal cups and some Shimano BBs have a plastic non drive-side cup, which isn't a big deal.
Not all suginos are metal cups.
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Old 11-19-12, 10:35 AM   #11
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Teach me something.

Which ones don't?
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Old 11-19-12, 11:02 AM   #12
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aren't these plastic? I could be wrong....although the last time was 1996.
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Old 11-19-12, 11:07 AM   #13
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The stripe of blue loctite indicates they are metal.
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Old 11-19-12, 11:16 AM   #14
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The stripe of blue loctite indicates they are metal.
DOH....I stand corrected
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