Oh good my post was of some help to you. Anyway what brake set-up are you running on the front. Because you mentioned your brake slipping and i presumed it was your front because they always do. Disc brake or rim brake.? If it's a rim brake and it is slipping on you. 1- Maybe get a grind on your rim, make it nice and rough. 2- To go with that grind get a nice set of koxx bloxx greens on the front, works a treet. If you are running a disc and it is slipping on you. 1- There could be some sort of oil or lubricant on your rotor, so this means it will not grip properly. 2- Your brake, if it is hydraullic could do with a re-bleed, because the oil's not running smooth. 3- If it is a cable disc brake then you may of stretched your cable so it does not move the pads correctly. Thats all i can think of. Hope i helped ! Dan !