I concur with others here that this is NOT a legal border crossing for travellers including cyclists. It is an unmanned crossing so if you use it, you won't get a stamp in your passport and might have a hard time explaining to the border police why this stamp is missing when you leave Montenegro through another border crossing. In addition, after climbing the (sometimes very) steep road from either side to reach the border, you run the risk of being stopped by a police officer passing by and having to make the 100+ km detour to one of the legal crossings in the North (Hum - Šćepan Polje) or South (Vraćenovići - Deleuša).