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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 10-20-08, 01:16 AM   #1
TrendSpeed
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Superlap bottom bracket

So I have used the sugino 75 bottom bracket... but whats the superlap? Is it really a better bottom bracket? Will it last longer? Is it just some obserdity like the grand mighty with some couple dozen or more passes through forging. Just curious thats all.
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Old 10-20-08, 02:09 AM   #2
jussik
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Yes, on Super Lap the bearing cups are just smoother and better finished on the inside but it will make absolutely no difference (except the price...) if/when you're riding on the street.
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Old 10-20-08, 08:28 AM   #3
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Yeah I guess the superlaps bearing races are high polished.
I cant imagine anyone anywhere in any situation would notice any difference. Track or Street.
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Old 10-20-08, 09:42 AM   #4
Ken Cox
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I wonder how one could scientifically test or compare the polished and unpolished bottom brackets against each other?

I visited a site the other night in which the maker of hubs with super-duper bearings stated a specific reduction in the watts required for a given distance.

In the above case, the maker made an argument for the superior uniformity and roundness of the ball bearings.
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Old 10-20-08, 09:45 AM   #5
jdms mvp
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difference is nominal
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Old 10-20-08, 11:41 AM   #6
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What do polished races matter if you're using bearing cages anyways?
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