Keiser M3iX Indoor Cycle Incredibly durable, made in the U.S.A. and nearly maintenance free! Smooth, whisper-quiet magnetic resistance! Unique "X-Bar" system engages your core and burns more calories! We are on YouTube! Search for the Keiser M3X on YouTube to see a video of the M3X in action! Decrease and increase the X-Bar pivot with the turn of a knob!