Mark,
The Nivex shifts better than most modern derailleurs. Especially with a wide 5/6-speed chain, which most derailleurs hate. It feels like Hyperglide, but you are using a normal freewheel (which will not wear out like Hyperglide with its wide cogs). There is absolutely no comparison between a Nivex and the other old stuff, like Simplex SLJ, Campy NR/SR, etc.
Don't know about the 543 - anybody got experience there?
Jan Heine, Seattle
>Personally, my priorities after historical importance go something like
> 2. coolness
> 3. beauty
> 4. durability and toughness
>...with shifting excellence somewhere down below those.
>
>Would any of us choose a Cyclone over a Nivex or 543 if offered the choice?
>
>Mark Bulgier
>Seattle, Wa