KD5046 RS-652 Front Brake Pads

Barbaro Racing KD5046 RS-652 front brake pads for AP Racing CP6269 / CP7269, AP Racing CP6269 D64 configuration /CP7269 D64 family calipers. RS-652 is Barbaro's extreme hybrid race compound for steel and carbon-ceramic rotors (50–800°C, μ 0.49–0.57 on steel). Pad shape KD5046: 163 × 78.7 × 25 mm; interchanges with AP Racing CP6210D64.

Specifications

Barbaro part number	KD5046
Compound	RS-652
Barbaro factory code (SKU)	D50465N5
Axle	Front
Dimensions (L × H × T)	163 × 78.7 × 25 mm
Drawing note	Drawing is rotated (long side vertical): length = vertical dimension, height = horizontal dimension. 163 overall (153.1 on the other side); backing plate 5.5.
Supplied as	One axle set
Pad features	D64 friction face; 25 mm thick

Caliper fitment

Caliper brand	Caliper	Details
AP Racing	CP6269 / CP7269	64 mm friction face, 25 mm thick
AP Racing	CP6269 D64 configuration /CP7269 D64 family

Fitment is compiled from the Barbaro Racing application catalogue and Barbaro factory data, together with the vehicle listings of the interchange part numbers below. Brake packages can differ within one model — please compare your current pads with the dimensions and drawing, or send us your VIN, before ordering.

Cross-reference / interchange numbers

AP Racing	CP6210D64

Interchange numbers identify the matching pad shape. Friction material, shims and wear-sensor hardware can differ between brands.

About the RS-652 compound

RS-652 · The extreme hybrid

Seven years in the making. Endurance and sprint on both carbon-ceramic and steel rotors with zero fall-off, protected by a self-renewing 1–3 micron transfer film. Average friction 0.555 μ — measured beyond PAGID RSL1 (0.510) and Endless MA45B (0.438).

Temperature range: 50–800°C
Friction: μ 0.49–0.57 (steel); rising with temperature on CCB
Discs: Steel + carbon-ceramic
Lock threshold: 95 bar (RS-635: 65 bar)
+46.1% lock threshold — 95 bar vs 65 bar
On CCB, friction rises with temperature — 0.689 μ at 800°C
Disc wear 0.001 mm — 1/9 of RSL1, 1/18 of MA45B
Ideal for: TCR, GT and touring-car racing on steel or carbon-ceramic discs

RS-652 full specifications on barbaro-racing.com

About Barbaro Racing

Barbaro Racing (野蛮人) is the performance brand of the CAC Racing Division — proprietary compounds developed entirely in-house. Development begins on the dynamometer and ends on the circuit: every friction formula is bench-tested to destruction before earning the right to carry the Barbaro name. All compounds are validated against GB5763-2018 national standards; Street Series compounds are asbestos-free.