I call this one Bumper number 11, aka "No Love", because it just didn't work out; shout out to Cody Garbrandt. It's actually a rip off of a cheap Chinese bumper but the geometry of the original is actually pretty twisted, so it took some doing and just ain't coming together. If you actually end up using this piece of poo post a pic so it doesn't feel like quite as big a waste of time. If you regret even reading this far, I understand, trust me. Hours. Hours. Hours.

The bumper is 190 wide...

You can use something like 3D Builder in Windows 10 to mod the bumper to suit your wants.

I made a generic mount kit for use with my bumpers:
https://www.thingiverse.com/thing:4617755

Check the mount kit for improvements. I expect the bumpers will not change.

Use at your own risk.

Wrench to drive or drive to wrench?

Creality

Ender 3

No

Yes

0.1

As you like

I would go with a beefy wall thickness for durability, say 1.2mm. I always turn up the heat to the point where stringing starts (+5) for more strength.