Patterned after StarTrac modelsTR4500 and TR4220 comes loaded w/ many of the same advanced features. Quick star feature plus 9 preset programs. Personal trainer studio creates and saves up to 250 custom programs. Sport utility display keeps towels, water bottles and personal stereos in place. Dynamic heart rate control adjusts intensity level based on the user's heart rate. Polar heart rate system allows for constant heart rate tracking. Soft Trac triple cell cushioning system for maximum shock absorption. 3" rollers, 3hp motor, 0-15% incline range, .5-12.5 mph speed range, 250Lb user weight capacity and 20" x 62" running surface. Warranty: motor 3 yrs parts and labor. Other parts: 2 yrs parts, 1 yr labor. Wear items: 6 mos. parts, and labor (USA only).