The Porterfield R-4 Carbon Kevlar pads use the latest ceramic composite
technology design combines high performance materials to make a better
stopping and more rotor friendly brake pad. These uniquely engineered
composite brake pads have a unique, integrally molded ceramic heat
shield designed specifically to minimize heat transfer in high
temperature applications keeping caliper temperature at proper levels.
These state-of-the-art materials offer tremendously high friction
levels while at the same time extending rotor life.
R4-S High Performance Street and Autocross
For high performance and heavy-duty street conditions. Perfect for
prolonged everyday street use while also being capable of tolerating
the most severe street use without any fade. Rotor friendly of course.
The R4-S friction level will give you an impressive increase in
stopping ability with very minimum pedal effort. R4-S compound has the
absolute lowest noise and dust levels, far below OEM equipment or any
other high performance brake material. Good for autocrossing, some
drivers' schools, and rallies. The R4-S compound is available for
virtually any vehicle sold in the US. We also offer the R4-S in pad
sizes for competition type calipers that are used under street driven
conditions.
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.
R4-E Endurance Race Compound
A carbon kevlar compound made to last a bit longer than the original
R-4 compound. The R4-E compound is designed to endure higher prolonged
temperature and still has pad life as long or longer than Porterfield
R-4 do. This pad is great for club enduro events and applications where
temperatures are at their maximum.
R4-1 Vintage Full Race Compound
Developed using knowledge testing in the vintage racing community.
Optimum uses for the R4-1, under conditions where very high friction is
needed with minimal warm up time and in applications where there is
difficulty in maintaining sufficient heat with conventional race pad
compounds. Widely used on vintage GT and formula cars the R4-1 is also
gaining popularity in off-road and rally-cross
classes. Great modulation, consistent pedal feedback and rotor friendly
at all temperatures as with all the other Porterfield Carbon Kevlar
compounds.
- Model: AP383-_
- Shipping Weight: 6lbs
- 14 Units in Stock
- Manufactured by: Porterfield