Nearly all bridleways and/or gravel routes. A few pieces on road to connect the sections but pretty minimal. Did it when dry and the route is fast, well packed surfaces with no major climbs but some good down hill sections when going anti-clockwise.
Great views along the way of some very beautiful rolling fields etc. Good sections through the woods. You will pass other walkers/bikers/horse riders so just be aware around corners but in general visibility line of sight is good.
All in all a really fun loop that would be suitable to join at any point along it.