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It's illegal to wear earphones in Québec.

It is a good idea for a trike with a throttle.

I am sure the gears will love that.

I think they just tried to squeeze their hybrid into the legislation to make it street legal, hence the 250W European standard and the appellation E-bike. With only a 250W motor, they should prepare themselves to pedal fiercely to move this thing with a front wind over a hill.

With a 250 W motor !!! https://www.autoblog.com/2024/06/22/french-karbikes-company-reveal-covered-four-wheel-e-bike/

Power tools need a fast charging rate, sometimes in 1/2 hour. That is faster than 1C. Fast charging generate heat. Most E-bike chargers charge at 0.1C to 0.25C, 5 to 15 times slower than a power tool charger, a very soft charging rate.

Aliexpress have a model with a strap.

By definition a clutch, like he wrote, is a system to disengage a motor ?

IMO the best reason to touch the front brake lever and cut the motor is to pass a larger gear with legs power only. Powerful mid motors are strong enough to destroy the mechanics and shifter line switches are not reliable .

I suggest you to read or look at vids. about the chain line of e-bikes (Luna). I personally reduced my 9 speeds cassette to 6. I also touch my brake before shifting to stop the motor.

lower/higher pressure ?

Another AI bike... https://forums.electricbikereview.com/threads/fun-with-ai.55230/

I think it's the capacity of the individual 18650 cells that is increasing. We can get more capacity from the same number of cells, weight and price.

French dictionaries are full of borrowings from English, probably because it's practical or it comes from the usage, when it's a french word it's by snobbism ! Perception ? ;)

Ultimate fixie demonstration.

Oh no, they are called "fixies" for fixed gear bikes and they race with them in the middle of the towns. The film Premium rush (2012) is a story about bicycle messengers who work and race fixies.

Good point.

What surprise me is that a worn-out low energy consomption lap top battery could be good enough for a higher energy consomption scooter. But when you have nothing else do you have the voice.

All the Specialized models I saw on EBR reviews are lithium-ion.

Horse training and Radio controlled 3D airplanes and helicopters.