Gattonero wrote:The 7 speed freehub won't take the 8 speed cassette (is shorter).
The Ergopower levers will be ok with most cantilever brakes.
But I do not like the mix&match of shifters/derailleurs so cannot answer on that. I would use bar-ends shifers that can work in friction mode, so whatever is the RD you will be ok with, and use a 7 speed cassette on the existing freehub body. Given the low price of bar-ends, it's the easiest solution IMO
Thanks, thought I'd need the 8-speed hub.
My gravel/ tourer has 10-speed ergos and 8-speed shimano which works well so I've no problems on that score. Just need to see whether the derailleur is compatible. My wife is a recent convert to cycling, loves the ergos and has campag on her road bike so I'm trying to keep everything the same and as she likes it!