Yes it is a plastic one!
Isnt it this one : strida.fr/roues-pneus/1670-alloy-freewheel-.html ?
It is named “alloy freewheel” on the website…
About the belt : it is an optical illusion. It is symmetrical 
Yes it is a plastic one!
Isnt it this one : strida.fr/roues-pneus/1670-alloy-freewheel-.html ?
It is named “alloy freewheel” on the website…
About the belt : it is an optical illusion. It is symmetrical