12mm Bike Stem Phone Mount fits Honda Blackbird / Kawasaki Motorcycles & Quick Grip Holder for iPhone 8 - 4.7 inch screen
The RAM Quick-Grip device mount is capable of holding a broad range of electronic devices. The spring loaded mechanism and the adjustable side keepers allow for a secure grip on your device. Whether it is a cell, GPS, blue tooth speaker or anything that will fit in the dimensions of the cradle, your electronics will be secure.
Included is a set of two nuts and bolts

Cradle Clamping Dimensions:
Height Range: 4.75 inch - 5.75 inch (approx 12cm - 14.6cm)
Width Range: 2.19 inch - 3.25 inch (approx 5.5cm - 8.2cm)
Max Depth: 0.72 inch (approx 1.8cm)

About the Mount:
12mm Hexagon hole mounting option
Unique central yoke nut fitting for sports bikes - British engineered - made from Anodised Aluminium.
Simple allen key fitting.
Note - not compatible with steering dampening systems.