Page 786 - 2019-2020 Racecar Engineering Circle Track Parts and Accessories Catalog

PolyMatrix Brake Pads
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and select the proper pads. Experimentation is often necessary to determine the correct compound for a particular application.
POLYMATRIX “A” COMPOUND POLYMATRIX BP-40 (“SMART PADS”) COMPOUND
Heat Range: Low to X-High, Torque: X-High Heat Range: Low to High Torque: Medium
“A” compound delivers an immediate cold response with Improved friction compound is well suited to severe-duty oval,
the highest friction values at all temperatures. Engineered for road course, and off-road applications that require aggressive
severe-duty oval track race applications that require immediate response and durability at the highest of temperatures. Pads
high response at low temperatures. offer very high-heat fade resistance and long wear rates with
POLYMATRIX “B” COMPOUND iron and steel rotors.
Heat Range: High, Torque: High POLYMATRIX “E” COMPOUND
With quick warm-up, high friction, and fade-free performance Heat Range: Medium to High, Torque: Medium to High
at high temperatures, “B” is the best choice for sprints on pave- $ SURYHQ ³0LOOLRQ 'ROODU´ ZLQQHU DQG WKH ¿UVW FKRLFH IRU DOO W\SHV
ment or dirt tracks with extreme braking. of dirt racing. “E” has immediate cold response, with consis-
BP-10 (“SMART PADS”) COMPOUND tent torque and pedal response through the entire temperature
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A medium to high-temp compound, low-dust characteristics, tracks, with plenty of stopping power right from the start.
and the low-temperature response of a street pad. Use on dirt POLYMATRIX “H” COMPOUND
track cars with vented iron rotors, club sport, and track day Heat Range: Low to X-High, Torque: High to X-High
racers. 6OLJKWO\ VRIWHU LQLWLDO UHVSRQVH WKDQ ³$´ FRPSRXQG ZLWK WKH
POLYMATRIX BP-20 ("SMART PADS") COMPOUND VDPH KLJK WHPSHUDWXUH IULFWLRQ 6HYHUH GXW\ FRPSRXQG KDV ORQJ
Heat Range: Medium to X-High, Torque: Light to Medium wear characteristics and works well on oval track applications.
Provides increased friction levels with extended temperature Delivers smooth, consistent engagement at all temperatures and
range over BP-10. Ideal for heavy braking on dirt tracks, and pedal pressures.
hobby and sportsman asphalt racing. POLYMATRIX “Q” COMPOUND
POLYMATRIX BP-30 ("SMART PADS") COMPOUND Heat Range: Low to Medium, Torque: Medium
Heat Range: Medium to X-High, Torque: Light to Medium Ceramic-enhanced compound is ideally suited for aluminum
Long-wearing pad in the middle temperature ranges with rotors. Provides smooth engagement, long service life, quick
moderate wear in sustained high-heat conditions. Works well on recovery, and high fade-resistance.
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Compound offers high friction throughout temperature range.
POLYMATRIX BRAKE PAD CHART (AXLE SETS, 4 PADS PER SET)
Caliper Pad “A” “B” “BP-10” “BP-20” “BP-30” “BP-40” “E” “H” “Q” “CM”
Type Type Compound Compound Compound Compound Compound Compound Compound Compound Compound Compound
GM/Howe D52 WIL15A-5737K WIL15B-3994K — — WIL150-14777K WIL150-12249K WIL15E-6102K WIL15H-8232K — —
GM/Metric D154 WIL15A-6219K WIL15B-3998K WIL150-8936K WIL150-9422K WIL150-14778K WIL150-12250K WIL15E-6103K — — —
Aero 4/6, W4A,
W6A Radial Mount 6617 — — WIL150-9488K — — — — — — —
Billet Dynapro 6712 — — — WIL150-10007K — WIL150-12760K — — — —
6-Lug Mount
Billet Dynalite Single 6812 WIL15A-10142K WIL15B-9819K WIL150-9764K — WIL150-14770K WIL150-12242K WIL15E-9820K — WIL15Q-10144K WIL150-14354K
Dynalite (Cotter Pin) 7112 WIL15A-5734K WIL15B-3991K WIL150-8850K — WIL150-14771K WIL150-12243K WIL15E-6096K WIL15H-8291K WIL15Q-6824K —
Superlite II, III 7320 WIL15A-5735K WIL15B-3992K WIL150-8856K — — — WIL15E-6100K — — —
Billet/Forged 7416 — WIL15B-6705K — WIL150-9415K WIL150-14772K WIL150-12244K — — — —
Narrow Superlite
Superlite 6
And Forged S/L 7420 WIL15A-5938K WIL15B-5939K WIL150-8854K — WIL150-14773K WIL150-12245K WIL15E-6084K WIL15H-8114K WIL15Q-6829K —
GN II, GN III, ST 7520 WIL15A-5736K WIL15B-3993K — — — WIL150-12246K — — — —
Billet Dynapro 7812 WIL15A-9835K WIL15B-9836K WIL150-9136K — WIL150-14775K — WIL15E-9837K WIL15H-10644K — —
Lug Mount
Billet Dynapro 7816 WIL15A-7263K WIL15B-7264K WIL150-8946K WIL150-9419K WIL150-14776K WIL150-12248K WIL15E-7266K — — WIL150-14346K
Narrow Mount
PAD TYPES

D52 D154 6617 6712 6812 7112

7320 7416 7420 7520 7812 7816
782 2019-20 CIRCLE TRACK PARTS AND ACCESSORIES