Count me as a skeptic. Using recycled plastic sounds admirable at first glance. Certainly gains PR points.
But from my limited knowledge of using recycled plastic, it requires tremendous amounts of energy to reach the finished product.
One cannot simply utilize any discarded material. It must consist largely of high-density polypropolene (spelling!) or HDPE.
Then it requires grinding into small bits, prior to feeding into a hopper that melts it for insertion to huge injection molding machines.
Getting those shades means adding expensive colorant, as well as EV inhibitors to prevent the sun from destroying the product prematurely.
My impression is those wheels need the highest quality HDPE for strength and durability.
And 37.5 pounds? Come on, for less than $1,280 you can buy a nice lightweight hybrid.