Trenga's prices seem ridiculous. You shouldn't have to spend that much money for brakes that yamaha should have put on the thing from the factory in the first place. Ebay it. Get the banshee spindles, calipers, and rotors. (maybe about $150) Get ASR braided brake lines (about $70) and a yfz master cylinder (picked up the one on my warrior for $40). That blaster will stop 20 times quicker than it ever could with trenga's rear brake kit, and for less money. Front brakes are the important ones, and being the front blaster brakes are those 10 cent cable operated drums from the factory, that would be the first thing i'd be replacing if I got a blaster. back brakes just lock up right away and drag.