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Dura Ace Bottom bracket
In switching over to the newer Dura Ace cranks (7800) on both of my bikes, it seems to me that the new bottom brackets have more drag and don't spin as well as the older style. Anyone noticed this? Do they "loosen up" over time?
Thanks! |
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Not to worry...they'll spin just fine. Jeff N.
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Pw
I think phil wood makes replacement cartridge bearings for the 7800 crankset. I don't know if you need to replace them but have heard that the phils are an improvement.
Ted. |
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Were you under the impression that Shimano's top of the line bearings aren't any good? It's under the full weighted load that matters, when hundreds of pounds of force are applied. ...unless all you do is move your crankarms with your fingers? Bearings are very efficient. -g Last edited by Grant McLean; 05-01-2008 at 03:34 PM. |
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Those concerned about the drag usually go for the ceramic replacements.$$$
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Have the BB shells been faced?
Maybe a dumb question but external BB's can bind if the BB shell faces aren't totally parallell. Maybe this isn't the "issue" you're having but I just thought I'd throw it out there...
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