On Fri, Jul 4, 2008 at 02:46, Tim Greiner <casey51234@...> wrote:
> The Rohloff is an excellent unit, but compared to the Shimano is
> heavier and not quite as efficient. It is beefier and gives a good
> ratio spread, but at close to $1000 and being hard to find a used one
> the Nexus won ($100 for a wheelset in very good shape). There are
> some Sturmey-Archer & Sram units with wider ratios but I found the
> Nexus first.

The Rohloff is between 35 and 160g lighter, depending on the model.  

Rohloff has extensive information about their efficiency here:http://www.rohloff.de/en/technical/speedhub/efficiency/index.html

According to this IPHVA report, the efficency is basically the same.

Anecdotal reports also show that the Rohloff is way more reliable than anything else on the market.

The only reason I see not to get the Rohloff compared to any other internally geared is cost.  Granted, that's a pretty large one.