For my 2018 Classic, I thought I would clear up the tail end. I did this on my 2006 Road King and liked the look. I bought the black Kuryakin curved license plate holder. Now onto taking rear fender off to drill factory fender support bar. I will take photos and keep you updated!

 

Drilled 4 holes in the rear under fender cross support bracket. Also made two brackets to bolt up to the support. These will allow a curved license plate holder to be bolted up. The bolts will be hidden behind the fender. Got an LED light strip to light the plate. Should be finished this evening...and will post more photos.

4 holes drilled. Make sure to find centerline or your plate will not be centered.

Went with two brackets 4” x 1” x 1/8” rather than one. The support is curved and this was easier to make.

 

Not my thing, but great illustrations!

 

Bolted up. Might have to slightly change angle of plate brackets...

Off the fender and where I like it. Now to add the license plate light.

 

Just my personal preference, but not a big fan of the plate in that location. I installed a lay-down. BTW, what about the three holes in the fender?

 

I am putting a gas cap round emblem over it. I saw someone else on the forum had done the 3 hole cover-up with the cover. Kuryakin also makes a chrome triangle cover specifically made for it. Eventually, I will get another fender and change out the taillight as well...and weld up the holes and repaint.

 

Took vicegrips and bent the mounting tabs on the plate holder enough to match profile of fender

 

That looks sweet! I love how it cleans up the look of the back fender. Nice job!

 

I might use that idea to mount a mud flap to the rear fender. I'm happy with the license plate where it is, but I miss the mud flap I had on my old bike. I'd also like one on the front fender, but hate to drill holes in the fender.

 

ack...I dont like it, just being honest. Dont take it to heart, my two cents.
Use to be someone made a bracket that fit under the tail light light and located the tag under it instead of on the fender above the tail light. You had to buy his tombstone lens that stopped the light from shining upwards. I added a DC LED tag trim. a lil time and patience but it turened out very nice.
Pulled the struts from the frame so the fender stayed intact, wiring harness underneath the seat with a molex connector released it all, and converted it. Piece of cake.
That was cool, I did it on my '14 Deluxe. Forget who it was, doubtful he still around though.