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I'm afraid Britain is in the same consumer trap as America, commerce and designers desperately searching for something new to satisfy their consumers' insatiable demand for something new to shop for. .

I think those changes would suit some drivers, judging by how they drive at present! :D

I frankly don't believe that claim.

I'm not sure I understand the question, do you mean internally to replace the orbital gear set, or as an external belt sprocket to use the hub motor in a crank drive fashion?

Yes, a belt would definitely be simpler, although, despite the manufacturer's claims, they are less efficient than chains and sprockets. However, on an e-bike where there's motor assistance, a small loss of efficiency doesn't matter. And anyway, the NuVinci hub I suggested is not particularly...

It's true. When I entered the trade in 1950 I was surprised at how many Sunbeam totally enclosed oilbath chaincase bikes were still in use on their original chains and sprockets since the 1920s and '30s. Some had been in use through the war as well. These ran the chain through a pool of oil...

Yes, they are not cheap!

These velomobiles are quite common in the Netherlands, and most are far more streamlined. Basically they are recumbent trikes with bodywork, here's a popular example: Some can be very sporting:

My problem too for some years now, not having the endurance. I can do seemingly remarkable things for seconds, but the minutes kill me. :(

Yes, it's a very complex area with a huge number of factors to consider Trex. Most though are very minor, and I think for the reasons I've given that a given performance delivered though a chain running at a constant speed, the wear is roughly constant. Juggling the rear sprocket in use on a...

You're a glutton for punishment Jim! Those are great speeds on the flat for an e-bike, I'm sure far better than the majority of members can achieve.

Not really, for a given performance the power onto the road has to be the same, so the input has to be the same. It's the power and torque difference again. The same speed chain runs on a larger rear sprocket so spreads the load over more teeth, so would seem to produce less wear. But the...

But as said Trex, the chain isn't running faster for a given road speed, assuming a single chainwheel as on the CD. It's just running on a larger rear sprocket which turns more slowly.

Doing that is more a matter of less strain on you. There's no difference for the chain since, assuming a single chainwheel, for a given performance it's transmitting the same force at the same linear chain speed On a hub gear bike it actually increases the strain on the hub gear due to...

They are both lithium batteries. It's not possible to be absolutely definitive without more information on such things as discharge rate. However, assuming similar quality and characteristics: The 15Ah one will have a compound cathode giving average life, and it's extra capacity will give...

It gets worse! Apparently both Expedia.co.uk and Booking.com quote lower hotel rates to mobile inquiries than to inquiries from PCs using their website. It's what they've negotiated with hoteliers on the fatuous grounds that mobile inquiries are more likely to be close to a booking. Exposed...

Any Russian "Bear" pilot probing our airspace and spotting that on radar would have thought we were running away! Report on return: "Comrades, they are terrified of us!"

If they cut off the circulation it wouldn't only be life that's shortened. :eek:

I did two tests. The American one said I have another 10 years, the UK one said I'd already reached the end so I must be dead. I wonder what this says about UK pessimism. :rolleyes: Or the NHS. :(

Any e-bike will sell at 50p. But will you sell it for that? ;)