I used a 2" section (roughly anyway) of 5/8th heater hose (maybe it was 1" dia?) with 3 hose clamps, on each side. On the inner side of the bushings. On my rear bar. The rear bar on my FXT was walking REALLY badly, once I did that, it didnt move for 3 weeks. I still bought the pol tec collars anyway though. Just to be "cleaner" looking