support for ebike display on a recumbent bike

I bought a kit to turn my recumbent bike into an ebike.
But I could only find kit for normal straight bikes. Mine is from GreenLive (on AliExpress.com).
So this piece allows to fix the LCD display of the kit to the main tube (longitudinal, diam 60 mm).
The notches are for 2 zip ties (aka cable ties), that are the simplest and lightest mean for this light screen.
The holes for the screws behind the screen are just marked, to avoid printing support (and anyway, you always need to re-drill hole