I have a 2016 xsr900 with approx 15,000 kms on the odometer. Just recently I noticed that, when coming to a stop, it feels like the front brake is grabbing and letting go in the last few meters. It's like the discs are warped. I've tried grabbing the brakes hard at higher speeds and, whilst you can still feel it in the rotor, there's no pulsing at the lever, no shaking or compromise in braking performance. YouTube tells me about semi floating brake rotors but I can tell you there's no movement in my front rotors to be found and the buttons do not spin or move at all. Could this be the problem or do I have warped discs? Any comments are welcome. Cheers.