I just dropped them an email on this issue, and they replied to me this morning:
Hello David,
we are still working on a safe solution.
The main issue is, that its highly dangerous for beginners and in a lot of countries world wide not legal by law.
We are thinking about an upgruade kit for the bars. I keep you posted.
Viele Grüße / Best regards
Christoph Hesina
So I think it's only to wait some time, but the upgrade will come