The Scosche SAHD6901B speaker adapters let you upgrade from 5”x 7” speakers to most 6”x 9” aftermarket speaker with a maximum bottom mount depth of 1/2" on a 2006 to 2013 Harley Davidson FLHX Street Glide or FLTR Road Glide Motorcycles with 5”x 7” factory Boom Audio Saddlebag Lid speaker locations. The adapters are made from high grade ABS materials and include waterproof gaskets to hold up to the harsh outdoor environment. We are so confident in the quality that we back the speaker adapters up with Scosche's Lifetime Tech Support and our Limited Lifetime warranty.