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I've ridden with a nuvinci 360 harmony for 6 years now. The hub is continually engaged so doesn't 'care' about shifting, the chain etc would prefer you maintain pressure and not lift off, the shift cable will have extra stress but it is your wrist that will be the limiting factor.

This article in German (use Google translate) has a chart that shows the efficiency and range of various hub gears including rohloff and nuvinci. The rohloff has more bottom end so better for steep hills. http://fahrradzukunft.de/17/wirkungsgradmessungen-an-nabenschaltungen-2/

I ride up an unmade 15% hill outside my house, but 25% would be too much without a different chain wheel, which would restrict the top speed. The nuvinci is best suited for urban/commuting, not touring.

I've been happily using a nuvinci geared bike for 4 years now. It suits the stop/start constant speed changes of my urban journeys. The nuvinci is 'sealed for life' intended to be maintenance free and not repairable. I have the Harmony version which is fully automatic, I personally wouldn't...

But does it make money as you pedal like their Toba model?

From road.cc/content/news/203474-e-bikes-being-widely-used-over-their-speed-limits ”The Sunday times found the retailer 50Cycles selling a range of German Kalkhoff “speed ebikes” with 350-watt motors capable of speeds of up to 28mph.” Can the impulse motor handle the strain? :eek:

It may be that because the Kalkhoff has a torque sensor, when you start off you subconsciously put in more effort and so does the assist, then you start to ease off and so does the assist.

Occasionally I see posters asking for an opinion of the NuVinci CVT. I've used a NuVinci Harmony for the last 18 months and have been very happy with it. Whether or not the NuVinci will suit you depends on where you sit on the convenience / performance curve. With the NuVinci Harmony you...

I've previously updated my firmware, its straightforward with the desktop software. You can also change settings - I reduced my cadence range. Go to the site I linked too, fill in the little form - it doesn't check what you enter. You will then see the software download and comprehensive guides...

I had this problem once, which was 'fixed' by disconnecting / connecting the battery then going through the calibration sequence, repeated several times. Otherwise you could try reinstal or update the Nuvinci Harmony N360 firmware from http://harmony.fallbrooktech.net/.

Italian newspaper Gazzetta dello Sport has described a motor hidden in the seat tube and bottom bracket as ‘old doping’ suggesting that special wheels, able to produce 20-60 watts via electromagnetics and costing 200,000 Euro, are the most sophisticated form of mechanical doping currently in use...

Long time lurker here. You can download the latest Nuvinci Harmony N360 firmware from http://harmony.fallbrooktech.net/. There is a short form to fill in - what you enter is not checked. The installation file includes application and firmware. The new firmware is a significant improvement to...