Air Shocks use air rather than coil springs and can be precisely tuned to the rider's weight and riding style with a high-pressure pump. They are generally much lighter than their counterparts with coil springs. Today, air dampers are popular from cross-country use to heavier enduro riding. Only in downhill riding the majority of still rely on spring dampers, but even here riders are already winning with air suspension. Air dampers typically have a progressive character. They are available with numerous adjustment possibilities on the damping and with or without an extra expansion tank. Many air dampers have several settings for uphill and downhill riding between which can be altered with a lever on the go.