gsxr 600 k4, handlebar vibration once on a while in braking

[beaver]

it has happened three times in one month, the tires (bt014 of 1 ^ endowment) have done just 5000km with the front one under good conditions, I am driving "happy", we are in two and braking not to the limit I notice some very evident vertical vibrations on the handlebar.
the thing is strange it doesn't happen all the time so I could always think to a loose of some part, the last time I was driving really fast, to find the curls on the tires but the thing has happened only once; in all the other brake the anterior one has been as always good.
the first thought that came to my mind it is that the thing is baited when, in braking, for a small irregularity of the asphalt the front tire loses contact an instant and goes to jam however I have not noticed signs on the tire. another hypothesis is that, always for irregularity of the asphalt, the anterior suspensions "goes crazy" working in counterway in comparison to the asphalt, strange because I still have the standard settings that it seems me to suit well for my driving
just because the thing appears only occasionally I am sure that the mech would not find anything anomalous. I have to decide whether to do and I don't want to waste money, I am too much around few of it........
I have made a turn of search on the gsxr forums and I have asked around to other owners discovering that I am not the only one, the most exact definition I have had her Saturday from another holder of 600k4: "it is as if I had the abs" and, thinking well about it, I can share the same feeling.
isolating therefore the problem in the brakes compartment here arrive the two solutions:
solution 1: it is that more suggested in the forums suzuki, where I have found other cases similar to mine; the guilts are the brake pads that, when braking hard several times in hte short terms would produce the problem, the most greater part of the people however experienced it in the first 1000km and then the phenomenon disappeared, to me has happened after the 4000. I wonder me as is possible that the pads can give then this problem. should I change her? and with kind of to this point? possible that suzuki has failed in such an important thing as the brake pads in its top series motorbikes?
solution 2: about my mech, to put the metal braid pipes (in italy called "aeronautical") that would avoid possible narrowings owed to the expansion of the rubber pipes because of the heat produced by the intensive use of the brakes.
the n°1 has a sense if a possible accumulation of dust or moisture on the pads or on disks that provokes the problem and then it doesn't repeat it up to that the accumulation is not reformed.
the 2 has a sense if the oil reach a critical temperature that produces the problem on the pipes and then, once reached the peak, for a natural lowering of the rhythm of guide once noticed , the temperature fall down and the phenomenon doesn't come up in the short term.
any suggestion or similar experience?

[87gsxrnut]

Odd. Switch the pads, then bleed the brakes. As an afterthought, are your steering head bearings torqued down correctly? Tires could also be a contributing factor.

- Nut

[futball22]

I would have maybe thought a warped disk, but since it's not happening consistantly I dont know what it would be. The steal braided break lines just give you more responsive breaking and reduce the spunge fealing on your break leaver when you pull on it to slow down, I dont think it would create a vibration.