@tumnurkoz Not much, TBH.
There's Grace Dieu (Thringstone Woods) which is not bad, but a bit small and cuts up VERY muddy in the wet. There's a cycle track round Beacon Hill, only half of which is really worth a ride.
The riding of bikes is not allowed at Bradgate (BOOO…) for reasons of I-know-not-why, and it's quite well patrolled too so I tend not to bother as arguing with men in land-rovers isn't wat I do for fun.
Ditto for Outwoods, although if you get in there in the snow it's ACE and most of the walkers I've met there have been entirely friendly about sharing the paths with me. I believe the parks and gardens police (well, in their own minds they are) have been having a clampdown on bikes there of late as well.
Swithland woods are ok, but there are only a couple of legal routes through (Bridleways) and the singletrack footpaths are mostly off limits (If they catch you, that is).
I think most folks round here ride on public footpaths, as there aren't many bridleways, and it's virtually accepted practice, but it would be nice to have some LEGAL singletrack.
So, as a result, I usually head over to Cannock and get my legal high in the company of other like-minded folks, or mix it up with some Peaks riding.