Vmax Keiser's pneumatic, variable-resistance machines are suited to all our club members, and will help them re-train their bodies to quickly reach their fitness goals with increased strength, speed and power. Keiser is proven to offer better, safer results - the results that keep our members coming back to our private fitness club. At Vmax you are able to train for speed and power, not limited by iron weights, with a power display option for tracking performance improvement.