This central fork stem yoke mount has been developed for use on motorcycles where a handlebar mounting option is not possible or desirable. Fit sports, superbike, endurance & touring motorbikes using the cylindrical bore wall (steering head tube) of the fork stems - Central fork stem hole fitting for hole diameter 15-17mm (0.59"-0.68").
Supplied with the BuyBits Original 1" Ball AMPS 4 Hole Adapter.
The 4-Hole AMPS pattern consists of four holes located in a rectangular pattern spaced at 1.188" by 1.813”.
Industry-standard 4-Hole AMPS pattern is used with in mounting options for many cameras, GPS devices, satellite radios or audio/video receivers.

Use to attach your ZUMO Dock (dock not included) Fits the TomTom Rider 500 / 550.

BuyBits Original extension arm - 3" length (7.62cm) between centers.
1" double socket fits all 1" ball mount bases. Made from heavy duty composite.
Light-weight & durable - A tightening screw on the side of the arm enables the sockets to clamp firmly to a 1" diameter ball. When loosening the side screw, a single spring inside the arm opens the sockets allowing you to pivot the ball and socket connection or completely disconnect the ball from the socket.