All Balls Racing – Brake Rotors, including front discs for the 88-89 Honda TRX250R, the 2019 Can-Am Outlander 450 6x6, the 20-23 Polaris Scrambler 1000 XP and the 09-14 Yamaha YFM550 Grizzly, plus rear discs for the 06-09 Yamaha YFZ450. Each disc is cut to the original diameter, thickness and bolt pattern for the machine listed, so it drops onto the hub and clears the caliper bracket without spacers or slotting. A rotor is a wear item, not permanent hardware. Once it is under minimum thickness, coned from heat, or grooved by worn-out pads, pedal and lever feel gets long and vague and every stop takes more distance. These ATV brake discs are stamped from hardened steel with vented or slotted faces that dump heat and clear water, mud and grit off the friction surface, which is what keeps bite consistent on the third and fourth hard stop of a trail descent. Fresh All Balls Racing rotors restore a firm pedal, even pad wear and predictable braking on loaded machines. Hub bolt pattern stays factory spec. Send us your year, make, model and whether you need front or rear and we will confirm the right disc before you order.