I have an 02 sportster trike, noticed when slowing down, I hear a tapping noise, seems to be coming from rear end. This happened once before and then it just went away. Now it's came back again. Anyone know what this might be? Another thing, this trike's handling is terrible, rides like a tractor down the road. Everyone that has owned a sportster trike has said great things about it, so what's the deal with mine?