The Forgeline Flush-Loc Centerlock Conversion System allows traditional multi-lug mounting hubs to be converted to a high-tech center-locking mononut configuration. The system consists of a custom-machined steel adapter that bolts to the existing multi-lug hub with a special set of drive-pin lug nuts. Used in combination with a center-locking wheel that we custom-engineer to work in conjunction with the adapter (wheel sold separately), the wheel slides onto the adapter and is secured with a single mononut. Several mononut styles are available (including Hex, GT, and 3-Eared Spinner/Knockoff styles) and in a variety of anodized colors (including Clear, Black, Blue, Gray, and Red).

The Flush-Loc system also includes a built-in locking system to keep the wheels secure and add an additional layer of safety. Once the wheel and centerlock nut are installed and tightened down, then the Flush-Loc cap is threaded inside the adapter and tightened down with the supplied wrench. Because the thread pitch of the Flush-Loc cap is finer than the centerlock nut, they cannot move together - which locks both the centerlock nut and the wheel in place. The Flush-Loc cap can be engraved with our standard "Forgeline" logo or left blank.

The Forgeline Flush-Loc Centerlock Conversion System is priced and sold per corner. Each corner kit includes: one custom threaded steel adapter (custom-machined to fit the original mounting hub), one set of drive pin lug nuts (one for each original lug stud), one centerlock mononut (your choice of Hex, GT, or 3-Eared Spinner/Knockoff), one Flush-Loc locking cap, one Flush-Loc cap socket tool, one Hex Nut socket tool, and one 24-inch breaker bar. (Kits ordered with the optional GT nut or 3-Eared Spinner/Knockoff nut are also supplied with an additional adapter tool.)

NOTE: The Forgeline Flush-Loc Centerlock Conversion System must be used with a Forgeline wheel that is custom-engineered to work in conjunction with the Flush-Loc system. When ordered together, the wheel will be engineered to mate with the adapter spindle, to account for the additional thickness of the Flush-Loc adapter, and to be equipped with hidden torque transfer pockets to accept the kit's drive pin lug nuts.

•     Converts multi-lug hubs to center-locking mononut configuration
•     Custom-machined adapters can be made to fit most multi-lug mounting hubs
•     Centerlock nuts available in Hex, GT, or 3-Eared Spinner/Knockoff Styles
•     Centerlock nuts can be anodized in Clear, Black, Blue, Gray, or Red
•     Flush-Loc safety nut provides additional layer of safety
•     Flush-Loc nut can be engraved with "Forgeline" logo or left blank
•     Includes custom adapter, drive pin nuts, Flush-Loc cap, centerlock nut (Hex, GT, or 3-Eared Spinner/Knockoff), and all necessary tools (hex socket, 24-inch breaker bar, and optional GT or Spinner nut adapter)
•     Priced and sold per corner
•     Must be used in combination with a Forgeline center-locking wheel (sold separately) that is engineered to work with the Flush-Loc kit