The i Joy Ride is a novel & exciting way to work out! It has been engineered to work your core muscles by challenging your balance. It does all the work; you just sit back, keep your balance, & have fun! The i Joy Ride's three-axis motion challenges three different muscle groups. Test your skills by varying the speed of the i Joy Ride or choose the auto-program & let the i Joy Ride take control, dishing out a combination of all four speeds. You really can't go wrong working out on the i Joy Ride. As you work to keep your balance, you're working your muscles. So, make it fun! Express yourself! The i Joy Ride's 3-axis motion system challenges three different muscle groups with: a pitching motion for toning the abs, a rolling motion for strengthening inner thighs & mid-torso muscles, a yawing motion for working the lumbar muscles. Use the ride control console to choose a comfortable speed for your work-out 4 speeds: Warm up (Default), Taking it Easy, Getting Serious, & Pump it Up, Auto function dishes out a combination of all 4 speeds, Ergo Seat with Visco foam Inch Loss Winner Award on Channel 4's Super Size vs Super Skinny