I am moving over to mazerron in December is there any one who rides on the Espuna much and fancy showing me around

You should be able to get some info from the Mariposa restaurant/hotel (not sure what village that is in), although they may point you to the campsite. There are lots of rides in that area on Wikiloc too.
If you’re feeling peckish after a ride, try ‘La Perdiz’, it’s close to the visitors centre in the forest…only give it a miss if you’re vegatarian. 🙂

Went there for a few days. It’s great you lucky boy. Dave Wade of Orange bikes lives there and a lot of locals seem to ride his bikes.

The campsite has some maps of local rides (I gave them to them)