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Standardise charging protocol, plugs and sockets, is a good idea. if the components are safe then there is much less need to legislate the kits.

The TSDZ8 (and TSDZ2B) comes with 5-bolt BCD chainring that is suitable for up to 10-speed cassettes which you can replace if necessary.

it's a new product so it will take some time.

I will have them later in the year. Why don't you look at bottom bbracket motors like the Tongsheng TSDZ8?

I support the idea of certification of batteries albeit with some reserve. The cells themselves are already subject to compulsory certification. The issue is there exists in China an important fake industry which rewrap unbranded cells with fake labels. Importers may be fooled to buy unknowingly...

1WH = 3600J (Joules) or 3.6KJ. You know how much charge is left in your battery. A hand grenade has about 50g of TNT explosive, about 200KJ, about 55WH. What makes these things dangerous is the speed of their release. If all that energy is released in a fraction of a second (like a grenade)...

it's only partially true. EVs account for more than 40% of cars in China and in the last quarter, sales of EVs in China overtook ICE cars. China has enough solar electricity to cover the needs of 1.41 billion Chinese. It's only their industries that need burning fossil fuels and are responsible...

Your body burns a lot more calories to keep itself warm while riding ebikes compared to heat produced by the muscle effort.

I would not recommend fat bikes for commuting. Punctures are a problem, and you can't have puncture proof tyres on fat bikes.

I think nuclear cannot compete on cost for the foreseeable future against solar. Industry turns to grid storage and high voltage interconnectors. Politicians would throw a bone or two to SMRs but are not serious about them.

wind and solar electricity is now much cheaper than electricity produced by fossil fuels. The new booming industry is grid storage, expected to grow about 32% a year for a while. China's CATL makes an abosute mint on it. Emergency generators are paid up to 7 times normal rates. Grid storage...

I suspect that petrol producing countries and petrol companies do like betting and tobacco companies, spend a lot of money on marketing. Selling on convenience and exaggerating the dangers of alternatives.

it takes a couple of hours to get used to the Brompton because it's so nimble but the extra weight of the kit steadies the bike a fair bit so it's much more like your normal bike.

The more I ride my Brompton, the more I appreciate how hard it is to make a good folding bike.

You can change maximum current setting , pas type, pas direction, motor sync. You may suss out that some parameters are not right more or less immediately, less experienced users may carry on using bad settings for months. The worst aspect is overvolting. You wouldn't stall a motor for long if...

KT controllers let users tinker with the settings, including overvolting the kit from 36V to 48V. Whenever your kit has a bad setting, it can get damaged. You can see why vendors who care about the excellence of their customer support would not want to go there.

Bafang is rock solid. I sell both brands.

The seeds fall down to earth with the water droplets that they started, so seeds are consumed straightaway. That's why seeding are not so widely used, otherwise Sahara would have been turned back to lush green forests.

That article contains a lot of errors.

The amount of iodine dust that a small plane can spread is tiny compared to the amount of rainfall (some 250mm in 3 days, average annual rainfall 95mm) and on such a wide area. it does not matter much anyway if an experiment went wrong. It's not as if the seeds can multiply, we are talking...