Well, I bought this 2012 Tri-Glide with 14,000 miles on it. Since then I have noticed when traveling over rough roads, expansion joints, etc. I get a very noticeable knock in the rear suspension. I even feel it in the floor boards. On regular roads it is fine but on those sharp, large bumps I get (and hear) the knock. Normal? Does not seem right to me. The roads around the dealership are smooth so I did not notice this on a test ride. If the suspension is bottoming out then it is hitting very hard. The previous owner had a rear lift kit installed and he had it removed on trade-in to install on his new trike. Did the service guys screw up something when doing the swap? I have looked it over and cannot see anything loose or missing. I weigh 250 lbs with gear on and ready to ride and I run 30 PSI in the shocks, 36 PSI in front tire and 24 PSI in rear tires. Thoughts or ideas? Thanks.