Originally Posted by
Dahon.Steve
All the marketing of these hubs and that includes Rohloff state how a derailluer drive weights just as much. I never really did the math but I'm glad someone did!
The above doesn't include the extra weight of the longer chain, the 2 extra front cogs, front derailleur, and the extra gear lever of a typical derailleur equipped bike - it's closer than what the above suggests.