Exactly why my koxx browns dissapeared in 1 month Now for my reveiw... Pads: Koxx Green Brake used: 05 maggy, water bleed, normal lever/hosing. time used: 5 weeks Rim used: Echo 2006 19" rim Grind: yes, medium What is your opinion of a working brake: sudden lock, no mudulation, very loud. Pad used opinion: These pads were crap for the first 5 mins, but then they had bedded in, and the brake went AMAZING, was very loud, with lots of lock. gave me alot od confidence in everything. After around 4 days, i got a pinch so had to take rear wheel out to fix it, put wheel back in, that sudden lock and loud squeek went. it was still an OK brake, but wasnt GOOD. Rode with it like this for another 1 week, thinking it would bed in again, but never did... so took wheel out, got new inner tube, reground my rim, took the surface off the top of my pads with angle grinder (made surface shiny) set brake up amazingly, and... WOW, an AMAZING brake... Was fricken awesome... till my chain snapped... then had to move my wheel in drop outs to set new chain up All in all: Pads are amazing, good hold, nice and loud with lots of bite 10/10