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If you look at the functionality, there is no difference whether the torque is generated at the crank then transferred to the rear wheel via the chain or generated directly at the rear wheel. The difference in feel is not a matter for physics but for the riders. It comes mainly through two...

if it goes like flu, immunity may not last for more than 1 to 2 years.

my immediate problem is when to put the prices up. I am paying for new supplies at £1 = $1.11 today.

RobF always rubbishes Chinese bikes, not just hub drives.

The Chinese crank drive motors have always been smoother and more responsive than the hub drives, until recently where we see wide use of hub motors with high reduction ratio like the Aikemas. RobF, what you failed to appreciate is that for most people, functionality is the most important...

0.9% IFR (overall infection fatality rate), much worse for pensioners. and the peak of the disease is in December 2020. Until then, the number will rise faster and faster. There won't be enough hospital beds.

thank you warwick. It's true that the new bikes are better. The Sirocco CDL was made in 2014. 6 years is a long time. Back then, it had only the Bosch DU to compare with. The new woosh Rambla is a world away . It's just evolution. Bosch went from 2011 with the old classic 50NM drive unit with...

car parks could be fitted with contactless chargers. They work well already up to 2kw.

the cost of batteries in e-cars drops about 20%-25% year on year, it won't be long (around 2025) before an e-car is cheaper to make compared to a normal petrol burning car.

they should put a GPS tracker on the expensive demo bikes.

I think the government knows more than they let out, otherwise they would not have gone for lockdown. Our fatalities are quite low in number at present and the growth rate of fatalities seems to be much slower than Italy's at the point in time. Possibly thanks to our doctors. Government aims to...

I can see the reasoning behind both question and government's loan guarantee. The tax income is about half of the GDP, if government allows companies and individuals to suspend their tax payments, government will be forced to borrow a lot more. The loan guarantee does not cost anything right...

while waiting for a vaccine, let's hope that the doctors will come up with some treatment plans for those with underlying health conditions. Some of us will be more than 10 times at risk of dying compared to someone of the same age and healthy.

since last year, I affix this label to our bikes/batteries: I also post frequently about fire risks, charging, storage of e-bike batteries and recommend members to pay a little more for Samsung and Panasonic 18650 cells.

I think the article is oversimplistic and the lockdown is only for a few weeks until its effectiveness can be assessed. It's not like we don't have any antiviral treatment, it's just that we have not had enough time to go through systematically all the CSRs. At present, it's up to the doctors to...

Pound tanked a bit to $1.20 but the FT100 got a bit back. Sunak is offering up to £10,000 grant to small businesses. He on the news right now. That sounds pretty good to me!

replacing the cell pack with a new factory made cell pack is easy and relatively safe because the only difference with a new battery is the casing and the sockets but that is not what he did. What he did was repairing two faulty batteries. Their cells are well old. If the cells developped...

you mean the charger's plug? it's fitted with UK plug, you will need to use an adapter plug or cut it off and fit in a new plug.

Lithium batteries are improving all the time but they should be binned after 7 years, much less if they are left unused for long period, a year or more. It's really a case of use it or lose it. When they are left unused, dendrites form on the surface of the electrodes causing short circuit when...

original estimate was 3.4% fatality rate * (80% * 65 millions) population (52 million people) catching it = 1.77 million deaths. Since, they revised that down to 500,000 without social distancing, then 250,000 now with social distancing. That's 3 years worth of EU immigration!