google, custom made saddlebags for motorcycles, there are several makers and they have a bracket to mount the bags. I bought a pair about 5 or 6 years ago cant remember the site but i had to buy them thru a harley dealer, i have a super glide, i had to relocate my rear tail lites, and purchased a kit from harley to place the saddle bag brackets on, wish i still had the part #. That should get you a good start.