When I had the R & G had no problem replacing the filter, I just turned the filter over and it came out perfectly without touching the bars, then to insert the new filter, I did the same, I turned the filter over and it went in perfectly.
With the Tralex bars I couldn't do the same and I had to loosen the screw at the bottom of the engine where the bars are attached to be able to remove the filter and fit the new filter.
If Tralex is nearby, they may have some other way to avoid touching the bars.