Not sure what I'm looking at in the photo.
But if you are concerned about the bend radius of RG-58:
It'll vary between specific types (solid core/RG-58U, stranded core/RG-58A) and brand. Most have a 1/2" minimum bend radius, which means you can bend it around a 1/2" diameter during installation and be OK.
Usually not ideal to leave it bent that tight permanently. Most manufacturers will recommend a permanent bend radius of 10 times the outer diameter, so something in the 2" diameter range is perfectly fine.
The risk is that the center conductor kinks (mainly a concern in solid core coax) or that the center conductor migrates through the insulation and either throws the impedance off, or it actually makes contact with the outer braid.