He was seventeen minutes behind the race-leader Hector Martin before start of the stage to Luchon but finished in yellow.
He finished an hour and forty eight minutes ahead of second placed Maurice De Waele.
In that race, the frame of his bicycle broke on a level-crossing during the 19th stage with 100 km remaining.
He borrowed an undersized, women’s bicycle and was helped back into the race by his Alcyon domestiques.
He exchanged it for another Alcyon bicycle, which he rode to victory in Paris ahead of teammates Andre Leducq and De Waele.
After winning stage seven of the 1929 Tour in Bordeaux, Frantz was one of three yellow jerseys on the same time in general classification with Leducq and Victor Fontan.
Despite leading the race at one point in stage 10, a puncture cost him the yellow jersey before the end of day and he eventually finished the Tour in fifth place.