The Ozone V4 bar spare parts. The trim line in earlier versions was part of the mainline, now with the V4 bar it is a separate piece, which is an excellent improvement in design.
Easy to replace the only tools required are the 3mm Allen key that comes with every new bar, or that is found on any set of metric Allen keys. Take a photo before you start and pay attention to the order that you remove things and then put them back in reverse order.
Watch this upgrade video to see how easy it all comes apart and goes back together.