Most people call them "air bumps." The racing industry refers to them as "secondary suspension." An accurate description for them would be "pneumatic bumpstops." In desert racing, they are required ...

Why does anybody use air shocks with full-size trucks? Fox says a 2.5-inch air shock has a spring force of 750 pounds per inch at full pressure, which means it's OK to hold up my truck's 5,000-pound ...