Bilstein Gas Pressure Shock Absorbers ThyssenKrupp Bilstein of America Bilstein introduced the very first monotube gas pressure shock absorber to the extremely challenging world of off-road racing. It didn’t take long for Baja racers to recognize the superior performance that this new technology provided and the wins started stacking up. In fact, some of off-road racing's most renown drivers have won on Bilstein shocks. 2