Arnold Schwarzenegger's back, as promised, and looking happy and heart-healthy enough to go for a bike ride.
The 70-year-old actor hit a Santa Monica bike path Thursday and was seen pedaling around with a friend ... less than 2 months after having emergency open-heart surgery.
We broke the story ... Arnold had to have the emergency operation after a scheduled valve replacement repair went awry.
Fortunately, his medical team was prepared and everything turned out fine ... and he looks perfectly stable on a bicycle.
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