John Bonham used a technique called a "triplet" on his bass drum for this song to get a double bass pedal sound. He used the tip of his toe to flick the bass pedal back fast, creating an effect many drummers tried to copy. Jimmy Page explained in the BBC Book Guitar Greats
, "'Good Times, Bad Times,' as usual, came out of a riff with a great deal of John Paul Jones on bass, and it really knocked everybody sideways when they heard the bass drum pattern, because I think everyone was laying bets that Bonzo was using two bass drums, but he only had one."
Thomas - Toronto, Canada