These clipons are a well made product; I can see the build quality of these bars is high. They lowered the ergos on my 02 f4i making it more fit for doing trackdays. The installation was moderate because I did not want the bars hitting anything but the stops. I found when I set the bars in a comfortable position the clutch perch (stock) and front brake master cylinder (brembo) were hitting. I had to remove material from both sides of the fairing stay in spots to correct. I then welded in some more material in the back of the stay for reinforcement. I could not find any exact measurement I could take to make each bar at the same angle so I ended up getting it as close as I could and marking the triple, tubes, and clamps with a punch mark for reassembly later. The ride is very good as far as the ergos go, but you will notice bad vibration at very high rpm. Staying very loose on the grips helped but I am thinking about filling the bars with a weight to correct this problem.