I bought the #54388 (3x48,5mm) and #54387 (2.6x27mm) for the TRF502x but not arrived yet. I don't know if the #19804360 (3x41mm) have a titanium version...
My problem was that the original ones have been bent (the 3x48,5mm more than others) to the point that I had to straighten them with pliers. I must say that I broke the rear suspension mount (#54441) and one right front lower arm (#51275) in 2 months approx. running.
I'm sure that the titanium versions will help
