140 Miles with Cafes, passes, humpty backed bridges, lovely scenery and a good mix of roads (Clockwise direction);
https://www.google.com/maps/d/u/1/edit?hl=en&hl=en&mid=1Evegv3OeuOAjWoI6955D6mVeVAC-ejKV&ll=57.37421634498746%2C-3.035241499999996&z=10
Yup, some great bits of road there

: