I tested my certified 24K 17.5 last night and it rips! It's night and day between my old Fantom fully tuned IonV5. It has lots of torque and top end. With the Fantom, I was geared 72/28 at 55* and the 24K I ended up at 69/31 at 50*, but I wouldn't say that is the end result. This motor is so hot I took the slipper eliminator off and adjusted the esc to take off the edge. It is almost too much motor for me.