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Porterfield R4-1 - Wilwood 7112 shape for Miata , wilwood 4 piston dynalite
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Porterfield R4-1 - Wilwood 7112 shape

Autocross/Light Track

PART NUMBER: 13-1022WILR1

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SALE
Reg. Price: $169.00

Sale Price: $159.00

Quantity:

FREE SHIPPING

Free shipping offers apply only to destinations within US Lower 48.

SALE
Reg. Price: $169.00

Sale Price: $159.00

Quantity:

FREE SHIPPING

Free shipping offers apply only to destinations within US Lower 48.

DESCRIPTION

This high friction racing material has grown to be a very popular choice for drivers who need the highest possible friction with a low pad temperature. Developed and tested in the vintage racing community the R4-1 gives an average coefficient of friction of .56 with peak levels up to .600. Having tremendous stopping power, the R4-1 pad material can reach upwards of .5 friction level when pad temperature is a very low 200 F .

Drivers can still have a high friction brake pad without worry of the pad becoming too cold to be effective when the car is driven only moderately. For use when pad temperatures are under 600 F and peak temperatures are not over 1000 F. Widely used on Vintage GT and formula cars the R4-1 has gained great popularity as an excellent auto-cross, off-road and rally-cross pad material. Great modulation, consistent pedal feedback and the same rotor friendliness as our other carbon kevlar compounds.

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