I guess it would depend on what you subjectively consider "bumpy". As I mentioned before, RnR has one quick drop that makes it feel like the floor fell out from under you for just a brief second. Also, IMO, some of the left or right turns it makes are quick transitions. But to me, that's not bumpy...it's still very smooth, just quick. To me, bumpy is Space Mountain or BTMRR. The only thing about RnR that isn't smooth to me is the final stop...both when the fast part is ending and then when you pull up to the exit dock. It jerks to a stop pretty suddenly. So does EE, to the point I've learned to brace myself when the ride is ending.