Yep , once went down a route which was single track road which turned into gravel on a 30 mph corner , another time on my CX it went from tarmac to a trail covered in half bricks and broken roof tiles as hardcore and had to walk half a mile on cleats , the idea of cycle routes is great but wonder if Sustrans is fit for purpose , is it not maybe another money making charity for its directors? , not sure as I do not know how they operate.