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> I researched the problem extensively... Just curious: Did your efforts identify the sweet spots, given misc costs. Like the "makes sense" price as carbon cos

> I researched the problem extensively... Just curious: Did your efforts identify the sweet spots, given misc costs. Like the "makes sense" price as carbon costs rise and battery cost per amp fall. Factoring weight, distance, speed, recharge times, etc. Why I ask: The most interesting part of the Tesla origin story, to me, is the recognition that laptop battery cost per amp trends would make full-sized EV automobile viable. So they jumped in to catch that wave. Timing is important. Separately: I'm also curious what the market segmentation line is between bike and scooter. eg Maybe bikes can peel away some of the scooter market. I've observed that biked wheel sizes are getting smaller as well as getting cargo features. So why not?

baybal2 6y ago
I did. First is still the same 150cc replacement since the niche is sooo big. Even if you cost as much as best 150cc on the market, somebody will still buy it for electric convenience, so load it up with cheap fancy features too like cruise control, seat heater etc. A good 150cc has around 7-8kw of power, and it is the upper limit of a hub motor, and passive cooling, which you should capitalise on. 4.5kwh battery for 50-60km range. 6kwh premium option for around 80km. Air cooled motor controller for a completely liquid free design. Screechingly, you can fit into $5000-6000 premium 150cc segment.
baybal2 6y ago
Second is 250cc-300cc equivalent. Basically an Nmax, or Xmax killer. From that segment, people do expect real speed, and some semblance of a highway rideability. This definitely needs above 10kw motor, which means liquid cooling, and bye bye hub motor. Batteries need to be MUCH larger since what's the fun of riding on a highway if you can only drive 60km? Think of up to 10-12kwh options. Huge batteries also assume longer charging, or higher currents. Since we already went with liquid cooling for motor, liquid cooling a battery pack is the next logical step, and same is for motor controller. Charger circuit will likely have to be dedicated as you will likely go above 16 cells. Weight will be an issue. If you go above 180kg (Xmax 300) you will scare off a lot of women buyers. The dynamic options of the chassis will also become important, so more will go into non-powertrain parts. Try to squeeze into $8k USD. In Asia, it's quite a luxury segment, so fit it accordingly.
baybal2 6y ago
> I'm also curious what the market segmentation line is between bike and scooter. If you mean bicycles, than very obvious, you want to drive on the road? In much of the world, you cannot legally, or would not risk doing so anyways. If you mean motorcycles, than its just well taste + expectations of better dynamic qualities. Scooter is more of an urban vehicles, where motorcycles has appeal in rural areas for use on dirt roads. There bigger wheels, and higher seating is a plus.
baybal2 6y ago
Are you working in this field by any chance?
- specialist 6y ago
  Hi. Sorry, no. Just trying to make sense of things.

baybal2 6y ago

I did. First is still the same 150cc replacement since the niche is sooo big. Even if you cost as much as best 150cc on the market, somebody will still buy it for electric convenience, so load it up with cheap fancy features too like cruise control, seat heater etc. A good 150cc has around 7-8kw of power, and it is the upper limit of a hub motor, and passive cooling, which you should capitalise on. 4.5kwh battery for 50-60km range. 6kwh premium option for around 80km. Air cooled motor controller for a completely liquid free design. Screechingly, you can fit into $5000-6000 premium 150cc segment.

baybal2 6y ago

Second is 250cc-300cc equivalent. Basically an Nmax, or Xmax killer. From that segment, people do expect real speed, and some semblance of a highway rideability. This definitely needs above 10kw motor, which means liquid cooling, and bye bye hub motor. Batteries need to be MUCH larger since what's the fun of riding on a highway if you can only drive 60km? Think of up to 10-12kwh options. Huge batteries also assume longer charging, or higher currents. Since we already went with liquid cooling for motor, liquid cooling a battery pack is the next logical step, and same is for motor controller. Charger circuit will likely have to be dedicated as you will likely go above 16 cells. Weight will be an issue. If you go above 180kg (Xmax 300) you will scare off a lot of women buyers. The dynamic options of the chassis will also become important, so more will go into non-powertrain parts. Try to squeeze into $8k USD. In Asia, it's quite a luxury segment, so fit it accordingly.

baybal2 6y ago

> I'm also curious what the market segmentation line is between bike and scooter. If you mean bicycles, than very obvious, you want to drive on the road? In much of the world, you cannot legally, or would not risk doing so anyways. If you mean motorcycles, than its just well taste + expectations of better dynamic qualities. Scooter is more of an urban vehicles, where motorcycles has appeal in rural areas for use on dirt roads. There bigger wheels, and higher seating is a plus.

baybal2 6y ago

Are you working in this field by any chance?

specialist 6y ago
Hi. Sorry, no. Just trying to make sense of things.