Recently I have covered my W reg 2000 GS1150 (non ABS) with ACF50 being very careful not to get any on my brakes but since doing this I now have a clicking noise coming from my front brakes and only when I apply them. I have cleaned thoroughly the front callipers with brake cleaner and also the discs. I have noticed an amount of play in the front discs and have compared this with a few other GSs and have found that mine are slightly looser. This clicking noise is not to be confused with rattling that other members have mentioned in various threads and has only developed since applying the ACF50. Could this be a coincidence or has anyone else experienced this and what was the cure. Cheers Jay.