Originally Posted by EvilV
I'd really like to see an independent engineering test of the performance of the hub - particularly with regard to efficiency. The 97% figure sounds incredibly good. If it is true, we will be seeing more of these when someone makes a version from lighter materials.
What is wrong with user reviews? Who cares about numbers? I don't care about exact efficiency numbers. I
know the NuVinci is as good as a derailleur (or even better), because I own both.
Don't make a big issue of the weight. The NuVinci was introduced in 2007. They made it sturdy (and heavy) and there is only one model, so for now it can only be used in LEVs and citybikes. I'm sure there will be more (lighter) models next year.
My new NuVinci bike is heavy (24kg), but it rides as light as my former (derailleur) bike (about 20kg).
I'm sure NuVinci will be a hit (at least in Europe).