In article , says...


Tue, 01 Feb 2005 11:45:34 -0500, Sheldon Brown:

The Nexus 8 is supposedly more efficent and durable, and better able to
withstand shifting under load. It is also heavier, about 1.8 kg.

You have to distinguish between the "standard" SG-8R20 you sell and the
more efficient "premium" SG-8R25. The biggest difference is more roller
bearings instead of slide bearings in the planetary gearings.

The premium hub has a red stripe on teh hub body, so you can easily pick it
out from the standard edition. At interbike the shimano tech guy said the
premium model has the races polished to the same standard as ultegra hubs.
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Alex