hey guys I purchased a brand new s40 about 2 months ago! I'm going down the bobber path with it and was originally going to buy a blue collar bobber rear fender but I can't as I have a already put a larger rear tyre on ( my bad )
I'm looking a 9inch universal single seat in brown but in stumped on what to do about the rear guard?
If i go down the trailer fender route what size do I want? I'm going to weld a mount to the swig arm and bolt it to there ( basically the same as the BCB kit )
Here's a pic of how it sits now
Any help you guys can give is greatly appreciated!!

What he said ^
If you don't do a couple of struts at the back of the fender , it will flop about and vibrate to pieces. It's easy to pick up the rear wheel axle as a mount for the struts. It's not like you'll be having to loosen it often to adjust the chain.

I just attached a solo seat to the existing seat mounts (had to bend the rear mounts a little to make it comply )  The front mount went right on the seat I had bought on the bay.   The fender is a plastic sportster fender you can find cheap on the bay as well (i devised some mounts for it to using standard parts you can find at home depot, and mounted them to the shock)

I can take better pictures of the seats when I get home later;