High-end construction and components that fit you better A heavy-duty 23-lb. flywheel offers a fluid, comfortable motion for a consistently smooth, quiet workout. The new, durable specialty ascent trainer frame looks better and lasts longer, and features a variable stride length of 19 to 21 inches, so you can find the perfect movement for you. The 18.1AXT simulates a true walking, running or even stadium climbing movements, and offers a low-impact workout at any of the 20 levels of power incline. Nike + iPod workout tracking Join one of the world s biggest workout groups with Nike + iPod, which automatically saves all your workout data directly to your iPod so you can track your progress on nikerunning.com. Simply connect your iPod device to the Made for iPod connector and begin your workout while your pace, distance, time and calories burned are saved to your device. Once you ve finished, connect the iPod to your computer, where iTunes syncs your workout data directly to nikerunning.com. Every workout is there, ready for you to review. More tools to meet your needs The 18.1AXT offers more tools to meet your needs. This treadmill is Made for iPod, so you can dock and control your iPod directly from the console. The easy-to-read, 16-digit alphanumeric LED provides more of the instant, at-a-glance feedback you need. And you ll always stay motivated while the dynamic, built-in speaker system lets you blast your favorite workout tunes. Advanced workout tracking, more workout options Smarter features like our exclusive proFILE performance tracking technology enables up to two users to monitor and evaluate a variety of workout statistics, including time, calories, watts and distance, to help you reach your fitness goals faster. Additional programming, including 11 preprogrammed and 3 customizable workouts, gives you more training options and keeps your fitness routine fresh. Industry-leading service and warranty protection In addition to a lifetime frame warranty, AFG offers a two-year incline motor warranty, three years on parts and one year of unlimited in-home repairs.