certainly is
there's some other good ones round there
Henley up the Fairmile to Nettlebed turn left up to the M40, under the bridge, turn left, stop at the Englands Rose in Postcombe for a quickie or meal
Postcombe to Thame, a belter
Thame up to Long Crenden, turn right, another belter or straight on for the B4011
Crust