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I've not tried it Mike but others who have reported it as one of the most powerful of the German made crank units, possibly the most powerful. .

I'm sure that's not true Mike, it would mean the Bosch couldn't even reach the legal limit for many people, since just 200 watts is a common human cycling capability sustained limit in older riders. The Bosch unit is reputed to have over 500 watts maximum output. It's more powerful than the...

We have had that here as well, Tesco and SportsHQ have sold e-bikes from £300 upwards at times, though not currently. I think the fact that almost the entire mainland European market can be treated as one, both geographically and in currency terms is also an influence in helping to have low...

The NuVinci is less efficient than derailleurs despite their claims and probably only matches hub gear efficiency. However, it has a higher torque ratio than the other internal gear hubs, so you could certainly input more in total, meaning more from you is handleable. Bosch specify a lower...

Ah, but can a lady have grandfather rights? :p .

Technically the smaller the rear wheel, the better the mechanical advantage and the better the hill climbing in any particular gear ratio. Between a 20" wheel and a 27" 700c wheel, that will be noticeable, but the small under 6% difference between your 26" and the 700c wheel has little effect...

That 2 days wasn't a problem Louise, I was checking since a battery left a very long time after first charge can suffer problems. It seems as though the battery isn't actually charging, despite the charger connected, so complete return is definitely the best answer since it could be due to...

Louise, you said that when first received you charged it but then didn't use it until later. What interval was there between that first charge and first attempt to use? .

I think just the legal requirement if the motor is replaced, that is the original warranty just continues to duration. After all, the original warranty was what the customer expected when buying in the first instance, why should they expect anything different, less or substantially more? Of...

I'll start by saying the chances of being caught in consequence of any of the following are minimal. However, it's only right that everyone should be aware of the law as it applies to them. From today, to be a bureacracy free pedelec (EAPC), any new electric assisted bike bought must have it's...

Because men are additionally powered by pride, unwilling to admit or show any weakness? ;) .

And best wishes to all members for the New Year, with thanks for an eighth year of entertaining and interesting posts. My e-bike mileages haven't usually been very high compared with my previous unpowered bike mileages. My best was an intensive battery test for a manufacturer when I rode 3784...

The internally geared hub motors are quite light and include a freewheel that operates on overrun, so drag isn't normally a problem. If one of these wheels is spun by hand, it usually takes well over a minute to stop, despite a hand spin only getting it to 5 mph at most. I don't think we've...

More breakdowns! :rolleyes: .

As Trex said, the Copenhagen wheel has it's own internal torque sensor to detect pedalling, so only the transmissions from the phone app are external. There have been many quick attach solutions over the years but all have quickly disappeared, mainly due to not working very well. Even the...

The Copenhagen wheel is the simplest, you just fit the wheel, set the settings once with your smartphone and ride off. There's nothing else, it's just the wheel which contains the battery and the app you download into your smartphone. But it's only available in the USA as far as I know, so...

Even better, a single optical fibre path connecting everything, the frequencies of oscillations determining which is signalling. Just like the multiple telephone connections in a single fibre. No more wet weather worries. .

Whether it's widely supported I don't know Tom, but I supported what Trex posted from personal experience. After my first pedelec bike and then having a powerful enough throttle controlled one, I found a circumstance where squeezing between/past close stationary vehicles in heavily trafficked...

So uniquely a third hub motor type, high efficiency direct drive. Surprising perhaps that others haven't copied. .

An approach well proven long ago by Panasonic, everything on the right within the crank unit sealed crankcase: