so, i just pulled a rivet out of my back wheel(fully deflated, mustve done it yesterday).. tried taking the rear wheel off... and the **** off massive exhaust makes it impossible. its already dark and i dont have the light/patience to figure out how to dismantle the exhaust tonight.. but is this correct? do i have to remove the exhaust to be able to remove the rear wheel? or is there a trick I've missed? feels like a engineering fail..