I know many of those, like the original surron, but they look like motorcycles and scooters, not bicycles. It’s not impossible to make normal ebike-looking components go at that speed, but it will severely limit their lifespan or outright destroy them and you’re still going to need an expensive large battery to make it work, so I’d be surprised.
There’s the Bafang Ultra motor that can be hacked to do that (using a laptop and a special cable and shady exes from forums) but last I checked it will overheat and destroy itself without physically opening it and tweaking the thermals if you push it to those numbers. It’s not easy to make a motor that can go at that speed and put out that much power and still fit in a normal bike frame.
I know many of those, like the original surron, but they look like motorcycles and scooters, not bicycles. It’s not impossible to make normal ebike-looking components go at that speed, but it will severely limit their lifespan or outright destroy them and you’re still going to need an expensive large battery to make it work, so I’d be surprised.
There’s the Bafang Ultra motor that can be hacked to do that (using a laptop and a special cable and shady exes from forums) but last I checked it will overheat and destroy itself without physically opening it and tweaking the thermals if you push it to those numbers. It’s not easy to make a motor that can go at that speed and put out that much power and still fit in a normal bike frame.
It’d be pretty easy to stop abuse just by limiting dry weight to, say, 30kg.