just got docking hardware installed to the struts for a seat and backrest. but on small trips I just want to strap a bag down. was looking at bags by riverroad and firstgear. anyone have a suggestion? just need something for an overnight or two day trip.

 

My wife got us one of those leather sissy-bar back packs from Leather-up. I'm not sure of the brand but it didn't cost much. You can use it either way (on the seat or turn it around when you have a passenger). You can fit a lot of stuff in it.

 

im looking for one to lay right on the fender and hook to the docking hardware

 

You'll want something between the bag and the fender otherwise you risk messing up the paint.
I got a HD fender bag from Rooti and found it great, slips over the back rest and then 2 straps go around the top suspension bolt on either side. I put on a passenger pillion when I carry that bag, it is the perfect size to pack for 2-3 days.

 

I have a fender bib it will sit on

 

Try one of these:

http://www.lazyrider.com/

http://www.bikersfriend.com/

I have the lazyrider bag. It also can be used as a rider backrest (very comfortable).

 

my seat has the same set up as you, don't want to tske my backrest off to use the bag as one, cause once I take the back off then I wont have my back rest. I could carry it, but that would take up space. looking for a bad that lays long ways. may just strap down a small duffel

 

I often attached the bag behind my detachable sissybar (on my luggage rack). You can attach the bag to the docking posts and still use your seat backrest. I was just letting you know how comfortable the bag is as a backrest (it sits up much higher than a seat backrest and gives much more support for your back on longer rides).

I love my mustang backrest, but on longer rides there is no comparison, the bag is night and day better.

 

I use the Saddleman roll bag. They are leather and hold a few days worth of clothes and pretty cheap on Amazon.