I was taking the trike to the shop for some maintenance and doing about 65 MPH in rush hour traffic when it instantly started doing a "death wobble." When the shop put it on the lift, the service manager came to the waiting room and exclaimed "You got to see this!" Both rails of the swingarm were broken clean through. One fracture had rust on it so it must have occurred during the return trip from Sturgis. The other was bright and shiny and must have just happened. No one at the shop had ever seen something like this. Just wondering if anyone else had this happen. The conversion has about 20,000 miles on it and while it's been ridden hard it's not been abused.