Target most of the muscles in your lower body & improve cardiovascular function with the Nordic Track GX 4.6 exercise bike ensuring smooth performance thanks to a 9kg (19.8lbs) Effective Inertia flywheel. Find the right intensity for each session choosing from 20 digital levels of SMR Silent Magnetic Resistance & make quick selections with responsive One Touch controls. This sturdy, yet compact bike has a clear, 5'' backlit LCD display enabling you to view your live stats & keep track of achievements. With 21 programmes including a manual one, as well as 10 calorie & 10 performance workouts, the GX 4.6 helps you stay challenged & focused on the goal. Compatible with i Fit Coach BLE technology, it lets you discover a personalized fitness experience & gives you access to countless workouts designed by certified personal trainers, based on your daily calorie intake & calorie burn. For measuring heart rate, the bike offers hand pulse sensors & Bluetooth® smart wireless receiver for use with an optional chest belt that allows for staying in the right training zone. Speaking of entertainment options, there is an integrated tablet holder for multi-tasking, an audio port for your iPod or mp 3 player & dual 2'' speakers to energize your workouts. In addition, enhanced comfort & a perfect fit are provided by a bigger-than-average, ergonomically designed, adjustable seat & a handlebar with angle adjustment.