Hi SOAP
First up that route is pants & too much road work – sorry – but there are much better ones than that if you know where you are going.
IMHO (no doubt someone will be along soon to disagree) there are really 2 sides to Dartmoor.
W.Dartmoor Princetown/Burrator – nice & scenic not too techy but a great place to ride.
E.Dartmoor Lustleigh/Hound Tor – nice & scenic but more techy steep riding again a great place to ride.
When are you thinking of coming down? I’m sure that you could get a local guide for the day if you post up on here.
In the mean time I’ll email you a couple routes for you to look at.