400NL Turn TPTK

[Bullitos]

I like the riverbet since it looks like you could be 2nd barreling the ace to push him off a medium pair. Which may get him to call you lighter.

But I can't think of a hand you beat after he pushed the river. There's no missed draw, I doubt he would turn a medium PP into a bluff or would raise with something like AQ, AJ, AT. He probably would have folded those hands on the flop anyway. So a slowplayed 6x, 33 or a rivered 77, 45 make way more sense than a bluff. Therefore I would fold.