TwinPower unveiled its new performance-driven components for Harley-Davidsons, including steering-damper kits and high-flow ...

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.

But before we take a peek inside the automotive damper, and in particular examine the pros and cons of mono-tube and twin-tube shock absorber design, let’s quickly review what exactly a shock’s job is ...