When I come to a stop sign, as I approach I use the engine to help me decelerate. As this is happening I get a weird humming/rubbing feeling in the handlebars. The vibration starts as the RPM's start to fall off. If I just use the brakes it doesn't seem to happen. My bike seems to run fine other wise. I just had the tire replaced in the back. Don't know if this matters or not. Thank you for any and all help =) Bike is in Sig.