This article was originally published on Cycle World. Single-shock rear suspensions are near-universal today. Traditional twin-shock setups are still seen, but exist mainly for reasons of retro style.

In the wide world of automotive, motorcycle, and even bicycle suspension, rebound and compression are two main dynamics everyone cares about and should know and understand. But how much do you know of ...

Very nicely made shock absorber; looks like custom made. Chromoly steel; rebuildable. Nitrogen gas charged. Comes with cool-looking progressive rate springs in black or red. Internal bladder ...