If you see them at Interbike, try to record something with that bike on demo day.. they don't have any videos so I don't believe they have a working prototype. idk though... I like to see things working instead of just reading about how theoretical they are.
Impressive specs if it really works. Agreed that heat dissipation will be an issue, even if done through the frame. We experience issues with this when it is very hot and high humidity- air flow isn't enough to pull off heat from some hub motors or the internal brushed motor used on an Ego scooter.
I'll have whatever you're having with Dinner..haha.
If Apple's new product was an electric bike and it was unique and completely non serviceable by the customer, no one including me would have any concern about its performance or reliability. A $600 billion company's reputation precedes the new product.
Alas, Spīr is not Apple. They're not even Sondors.
But please go ahead and order a few. Stay close to the dealer!