I'm brand new to trikes and I have a question to anyone who might know. I have a 2007 Gold Wing with a Lehman Monarch 11 Conversion. I love everything about it, it handles great and all but I've noticed a rubbing noise in the rear of the bike. I thought it might be just noise from the tires on the road. It sounds whenever I'm moving and follows the rotation of the back tires. I don't see anything rubbing. Anyone have this experience and tell me what to check. Everything else on the bike it fine, its shifts good and rides good. Any ideas? Thanks