★This product only has a ball mount base, not including a mobile phone holder.Fit on all motorcycles with holes fixing device.
★The 1 inch Ball head compatible with [R-a-m] Mounts B size double socket arm.
★Come with two aluminum alloy expansion plugs, large size expansion plugs can be added or removed depending on the size of the fork stem hole. When installing into a 13 - 17mm diameter mounting hole, simply insert a small expansion plug. When installing into a 17 - 20mm diameter mounting hole, insert both small and large expansion plugs.
★Insert the inserts into the motorcycle fork stem hole, turn the screw with an Allen wrench, and the expansion plugs expands, then the insert can be firmly fixed on the fork stem.
★The adapter bottom size can be adjusted in size.Please note: If you have expanded it ,it can not recovery.