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Manufacturers ->Porterfield Brakes -> R-4

R-4 Full Race Compound – Designed specifically for heavy-duty motorsports.  The carbon based semi-metallic R-4 materials allow the pad to absorb tremendous amounts of heat and dissipate it at very even rate.  Carbon Kevlar material warms up to race temperature quickly, which is quite helpful during restarts, and when track time is limited.  When used with cast iron and steel alloy rotors, the R-4 compound requires minimal bed-in period.  Throughout the entire heat range, the carbon kevlar material will give extremely consistent modulation and predictably.  This is truly the most rotor friendly racing brake pad material ever.  Good for road courses, oval track, rally, vintage racing, autocross, club events or professional racing events.



GD522

R-4

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Set of 4 Pieces
FRONTfor A.C: 64-68 Cobra// Alfa Romeo: 62-66 2600 Berlina, 8/1963-68 2600 Spider/Sprint, 62-63 Giuletta Sprint/Spider//Aston Martin: 72-90 Vantage//Ferrari: 67-70 Dino 206, 67-68 275, 67-68 365 w/Girling Calipers//Jaguar: 66-68 420, 68-9/1973 XJ6, 68-72 XJ 12, 9/1968-74 XK E//Lotus: 74-81 Elite, 75-84 Esprit w/Girling Calipers//Volvo: 62-8/1968 P1800

GD524


GD525

R-4

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Set of 4 Pieces
Girling 16 S/P Caliper

GD528

R-4

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Set of 4 Pieces
FRONTfor TRIUMPH: 62-67 Spitfire

GD533

R-4

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Set of 4 Pieces
FRONTfor TRIUMPH: 67-80 Spitfire // VOLVO: 72 P1800, 68-71 P1800 w/Rear Discs

GD535

R-4

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Set of 4 Pieces
Girling 14 LF/1 Caliper
REARfor DE TOMASO: 70-74 Pantera

GD549

R-4

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Set of 4 Pieces
FRONTfor VOLVO: 9/71-73 P1800, 9/68-8/71 P1800 W/Rear Drums Including Rear Discs, 67-74 140 Series W/ Girling System M/Cyl w/ 3 1/4" Flang, 8/69-71 160 Series, 8/69-71 160 Series w/Girling System M/Cyl w/ 3 1/4" Flang, 72 160 Series Exc 164E, 88-93 240 Series, 75 240 Series w/ Girling System Solid Front Disc including Vented Front Disc, 75-87 240 Series W/Solid Front Disc including Vented Front Disc, 79-85 240 Series w/Diesel Eng, 75-83 260 Series, 75 260 Series W/ Girling System, 88-93 240,242,244,245 Series

GD557

R-4

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Set of 4 Pieces
REARfor A.C: 64-68 Cobra//Alfa Romeo: 62-66 2600 Berlina, 8/63-68 2600 Spider/Sprint, 62-63 Giuletta Sprint/Spider//Aston Martin: 72-90 Vantage//Ferrari: 67-70 Dino 206, 67-68 275, 67-68 365 w/Girling Calipers, 67-76 365 GTB/GTC, 1976 365 GT4 2+2, 66-68 330 GTC/GTS//Jaguar: 66-68 420, 68-9/86 XJ6/12, 9/68-74 XK E, 76-92 XJ-S

GD585

R-4

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Set of 4 Pieces
FRONTfor JAGUAR: 73-86 XJ 6, 73-79 XJ 12, 76-92 XJ-S

LD10

R-4

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Set of 4 Pieces
FRONT for MG: 62-67 MGB Banjo, 67-74 MGB Spicer, 62-67 MGB GT Banjo, 67-74 MGB GT Spicer, 75-80 MGB , 75-80 MGB GT
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