A few weeks ago i fitted some Carbon Lorraine SBK 5 pads to my R1, bedded them in for about four days, roughly 120 - 130 miles and then did a trackday at Brands.
During the afternoon of the day i started to feel a pulsing through the bars under heavy braking, it wasn’t a judder just a slight on and off pulsing.
Now back on the road something is not right, when braking at crawling pace i get a god awful noise and when its wet the brakes are no where like they should be. In the dry there ok.
Yup thats exactly how mine were when I warped my disks! Get em checked mate. I warped mine in the South of France at the start of my holiday and when I got home they had got a lot worse!
Dont know if it will work or would be worth it, but see if you can get em skimmed.
Also, if bike is quite new, see if they can be changed under warrenty??? They will try to pull the wear and tear malarkey, but if it’s low mileage etc… it shouldnt be fair wear and tear!
Could be warped discs, but by the sound of it you may have glazed the pads/discs which could also give a similar effect (depends how bad the pulsing through the lever is). So before you buy new discs (skimming won’t really work on warped discs, they’ll be smooth, but still warped) get the pads out and clean/rough them up with some sand paper. Also give your discs a rub down with some wet and dry. Then bed them in again i.e. 10 stops from about 60mph, braking progressively harder each time.
If you still get pulsing, put the bike up on paddock stands. Then stick a match onto a forkleg wih some bluetack so that the end of the match is about 1mm from the disc surface. Spin the wheel and see if the 1mm gets bigger/smaller - a mm or two of lateral movement in the disc is OK, anymore and you should replace the disc.
