My 2012 Voyager is not the ABS model. When I hit the rear brake while riding I hear a buzzing noise from the right side behind me. First I thought it was something with the LED lights on the rear of the trunk, but it doesn't do it when I hit the front brake, so it's not that. I was just wondering if the rear brakes are ABS on it. It only does it when riding fairly fast, not when stopped or at a low speed.