Wilwood 160-3270 42T Alum. Sprint/Midget Drilled Rotor Wilwoods 3.00" x 42 splined axle mount rotors are manufactured from the same high strength billets with the same precision as our 3 hole mount front rotors. Full symmetrical machining provides perfect balance, perfect flatness and the truest rotation of any aluminum rotor being built. Wilwoods engineered drill pattern combines the highest degree of weight reduction with the highest resistance to thermal distortion in the contact faces. You get smooth engagement and a consistent full pedal from the low knock-back characteristics of this design. A durable black anodized finish prevents corrosion and simplifies the visual inspection of the contact faces. The best results are always achieved using PolyMatrix Q compound brake pads with these rotors. Unsafe for street use & unsuitable for most forms of Racing. Special racing application only. IE. Dirt Sprint & Midget. Can result in catastrophic failure when misused. Wilwood 120-10188 Dynapro Single Lightweight Caliper The Dyna Pro Single (DPS) billet caliper is the newest generation of calipers available as an upgrade or replacement for applications previously using the Dynalite Single (DLS) series. DPS calipers combine superior strength with performance enhancements to make these the best "Dyna" series calipers ever. The DPS is loaded with exclusive Wilwood performance enhancements. The calipers feature Quick-E-Clip pad retainers that support a 6812 type brake pad from the top. In addition to past pad service without caliper removal, the feature provides substantially stronger retention over the single Quick-Clip pin and 7012 type pads used in the previous DLS models. Quick-E-Clip pad retainers supports brake pad from top. Heavy wall stainless steel pistons. Stainless steel SRS bridge plates eliminate pad rattle and dampen vibration. Internal fluid passages. Four corner bleed screws allow mounting in any front, rear, left, or right side position. Wilwood 15Q-10144 Poly-Q Brake Pad For Ultra Lite single piston floating caliper, Outlaw 1000 and Wilwood Dynalite Single. .450" thick, 1.97" long, 589 A Compound. Medium friction, low to medium temperarture range. Good cold torque response. Low to moderate wear rate. Best for aluminum rotors. Kit Includes: (1) Wilwood 160-3270 42T Alum. Sprint/Midget Drilled Rotor, 10.20 x .310. (1) Wilwood 120-10188 Dynapro Single Lightweight Caliper, 3.25 Inch Mount. (2) Wilwood 15Q-10144 Poly-Q Brake Pad. Learn how to properly Bed-In your brake pads by reading our tech article. Bedding-In Brake Pad Procedure.