dowieze, This is what I used instead of the mount you are trying to find. There is enough room to put a nut on the bolt inside the steering head itself. A smaller socket set with plenty of extensions and a long reach/deep socket will get the job done. Using a shorter bolt would have been much easier, I used the shortest of the 3 supplied.
RAM Motorcycle Handlebar Clamp Base (RAM-B-367U)
Rob
I can not find this mount. The diameter of the steering tube is just 8 mm. Most of the mounts from ultimate addons are >12 mm. There is no thread for a bold. Where can I find this kind of mount. Thanks Marc