Complex sentence: The Generation 2 cylinders have 2 inputs (and come in studded, studless, and small versions), and allow pushing and pulling, depending on which input air is pumped into.
Split into simpler sentences: The Generation 2 cylinders have 2 inputs (and come in studded, studless, and small versions), and work on pressure in both directions. They allow pushing and pulling, depending on which input air is pumped into.