Okay I should be more specific, my bad. An ultimate wheel is similar to a unicycle, but with no fork so no fixed object I need to attach the axle too (sorry to have confused you I do understand what you're talking about as well ) basically I wanted a nice clean look and was hoping to bolt the axle in place in the hub, and use that axle to attach home mode pedals too, I'm just wondering if the hub/axle can take that kind of stress? Oh and I weigh a bit under 150lbs so I'm hoping that helps too...