Jefe U-Line rings are the latest and greatest out of the Jefe Custom Cycles lab. What we have here is a universal speaker adapter that can practically be used anywhere and on just about any application. The 8" and 10" would be ideal when installing speakers in Victory and Indian bags. The 10" version is an oversized ring that can be used for midbass 10's or slim line subwoofers like the JL 10TW3 and the DD slim line 10. Rings might require minor modifications for different speaker applications.