Lifecore VST-V6 Variable Stride Trainer is considered a solid, compact home Unit with great quality, general retailing for around $2,299 when new. This machine has variable stride: The standout feature is it's manually adjustable 18" to 26" stride length, allowing for walking, jogging, or running motions on one machine. Has 16 levels of magnetic resistance. Supports up to a 325 lb. User weight. Durability: The machine is noted for being heavy and stable, with sealed bearings in all moving parts.