Ok, have to round up some hopefully for the trike is at my other place that we have not sold yet. It has a 5/8 axle with a disk brake mid way on right side and on the end of same is a freewheel that shifts through seven gears. The axle is split and on the left side just bare , axles connected with pillow bearings bolted through the frame. I think I have some pic stored so we will see. Thanks for the interest. This thing flies by HP only.