Can't vouch for actual performance, but one of our FB Endless Sphere members fom Greece posted this foldable EBike he built. It's a Lefty Fork!
https://www.facebook.com/ebikes.gr
His claims: Everything is made of Aluminum, it rides smoothly and sharp (or even sharper as geometry can be adjusted from the fork plates). It weghts 17.5Kg but due to its geometry it feels featherlight.It has a build-in battery of 10.8Ah at 36V. Oh it's a folding bike too
https://www.facebook.com/ebikes.gr

His claims: Everything is made of Aluminum, it rides smoothly and sharp (or even sharper as geometry can be adjusted from the fork plates). It weghts 17.5Kg but due to its geometry it feels featherlight.It has a build-in battery of 10.8Ah at 36V. Oh it's a folding bike too