LOL yes, ascend, they can be tricky. Like I said, typically most bmx cassettes only go down to 12 or 13 teeth. I did a 1 piece driver on this hub, as well as my Odyssey Hazard Lite that's on my my street bike(Macneil Heaton). I tried a freecoaster once... I couldnt get used to it. Shortly thereafter it broke. HA!