brace for the controller box of a recumbent ebike

I bought a kit to electrify my recumbent bit.
But of course, you only find kits for normal bikes. Mine is from GreenLive, on AliExpress.com.
So this piece, printed 4 times in ABS, allows to fix the box that protects the electronic command module, to the tube (diam 60mm) of my bike.
If the arms are not flexible enough for giving way to the screwdriver, (and later to insert on the tube), cut several parallel notches inside the main curve, to reduce thickness.