I have done about 2K on my bike since i brought it two months ago, i expected the vibrations on my hands and maybe my feet, however after i have ridden for a while when i get off my privates are numb from the vibration and feels that i need the toilet with every step. Some times it is just the tip but most of the time its all of it!! I have tried different positions on the seat (further forward or further back) but to no prevail can anyone help!