A nearly all (">90%") plastic bike is interesting, and I guess if you're a plastics company that wants to create a bike it makes sense, but the end product does not seem very compelling to me. 17 kg, 1200 EUR, one size, proprietary parts, and only 50% recycled. A comparable aluminum bike beats it in every metric except maybe fatigue life(?).
My first bike bought with my first salaries (about 2-3 months) just turned 20 years old. It's a basic aluminum hardtail MTB. Still going strong - I do about 2-3k kms per year.
Post-consumer aluminum has been in common use for wheels for ages, and some major brands (like Trek) are also transitioning their aluminum frames to use recycled material.
You can recycle via depolymerization (see the various plastic-to-oil conversion refineries), although that's a more expensive process than simply melting and recasting.
"A regular e-bike battery can take several hours to charge completely, but the H2’s hydrogen cylinder requires just six minutes at a hydrogen filling station." Of course the company wanted to run the filling stations.
