10/8 adapter ring for Harley Davidson, 1 ring to fit all bags and the corresponding year topper with a little modifications will fit the adapter just by cutting it back from the rear 10 notch to follow the rear part of the 10/8 ring.
These are from CAD of a stock bag and then molds are CNC'd to insure a great fit for your Harley Davidson motorcycle.
You can either run a baffle 8 in the rear, a sealed back 8 or a compression driver.
Come with mounting hardware for the speakers and rings if you choose to use them, all retail customer will receive the drill bit and insert tool.
Fitment will also vary by bag manufacture. Using a Quality bag or stock bag will achieve the best results. The inside diameter may have to be opened slightly as there are different speaker manufactures on the market.
It is recommended but not necessary to use a 2 part epoxy to bond the adapter to the saddle bag. A good example would be 3M 08115. You should also have some knowledge of body work as you will be cutting the saddle bag.
**due to many variations of saddle bags these were CNC using stock bags. Depending on the bag slight modifications may have to be done to the adapter. I.E sanding to the mounting face of the adapter or use of silicon caulk to fill in small gaps. Using a quality aftermarket or stock bag will achieve the easiest and best results.