This video will shed light on why we dont ship the Keiser M3. We are the only source in the world with pro level building and tuning, utilizing our QuietTune build process. We have the ONLY indoor cycling specific retail stores in the world! Beware of the giant used fitness equipment warehouses that sell everything and specialize in NOTHING. Call Jeff direct at 888-909-BIKE or visit us online at Studiocycles.com