There is no resistance on this S15i bike and the incline/decline feature is wonky. It will calibrate as you ride and also just drop or increase some levels without touching anything. Dropping $2000 on machine like this should not have issues. Paid less for my washer and dryer and its putting Nordictrack to shame. User's recommendation: Buy a road bike and the resistance trainer. You can save there. Or get a jump rope.