This question is applied to automotive wheels/tires. I have two wheel and tire configurations, obviously these constitute a complex cylindrical shape. Cylinder A is 74cm in diameter and has a mass of 31.3kg. At a radius of 43cm half of the mass is before that distance and the other half is in the remaining 31cm. Cylinder B is 74cm in diameter and has a mass of 31.3kg. At a radius of 53cm half of the mass is before that distance and the other half is in the remaining 21cm. Would Cylinder B have a higher MOI? Put another way, would Cyl B require more engery to accelerate then Cyl A? I thought that the answer would be no, that the MOI is based upon the mass of the entire cylinder and the diameter across the axis, but I have a conversation that indicates otherwise that if the mass is centered further from the axis the MOI will be higher... Thank you in advance for your help!