These are ULR's. Unformed LEGAL Roads. As such anyone is permitted to access them at any time. However, one should be respectful of surrounding land owners and if possible inform them of your plan to travel the road as many of these roads run through farmer's paddocks and they appreciate people informing them so they know who is passing through. Also the roads should be treated with respect, i.e. don't go tearing the shit out of the grass on the sides of the roads and also ensure you remain on the road at all times because if you stray off the road you could be prosecuted for tresspassing. I would prefer that the names/location of these roads was not put out in public to avoid the access being ruined by the muppet brigade i.e. the ones who go up Thompsons track and leave rubbish everywhere and act like idiots. If you would like to know where they are send me a PM and I can show you where they are.
The first one is short but has 2 steep and slippery hills at one end. I wouldn't recommend attempting it on MT tyres unless it hasn't rained for 2 weeks. Starting from the bottom of the first hill:



