Which sentence is an example of faulty parallelism?

Turning sharply, gaining momentum, and to gently ride are a few surfing maneuvers.

In competition, surfers are judged on the size of the wave and the difficulty of their maneuvers.

Individual surfboards vary in length, width, and weight.

Compared to shortboards, longboards are longer, wider, and heavier.

The sentence "Turning sharply, gaining momentum, and to gently ride are a few surfing maneuvers." is an example of faulty parallelism.