CART
Porterfield R4-1 - Wilwood 7112 shape for Miata , wilwood 4 piston dynalite
Images may differ from actual product appearance.

Porterfield R4-1 - Wilwood 7112 shape

Autocross/Light Track

PART NUMBER: 13-1022WILR1

WRITE A REVIEW

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.

CUSTOMERS WHO BOUGHT THIS ITEM ALSO BOUGHT

On Sale
Porterfield R4-1 brake pads- REAR
Porterfield R4-1 brake pads- REAR

MIATA NA/NB 1994-2005 · 2001-2005 Normal Suspension ONLY

Autocross/Light Track

* FREE SHIPPING

$174.00

$159.00
WRITE REVIEW
On Sale
Goodwin Racing Miata Rear ONLY Stainless Lines

* FREE SHIPPING

$99.00

$87.00
WRITE REVIEW
On Sale
Goodwin Racing Miata Rear ONLY Stainless Lines

* FREE SHIPPING

$99.00

$87.00
WRITE REVIEW
On Sale
REAR Sport Size Rotor Upgrade Kit
REAR Sport Size Rotor Upgrade Kit

MIATA NA/NB 1990-2002

$462.06

$399.00
WRITE REVIEW
On Sale
RoadsterSport Competition Differential Mounts
RoadsterSport Competition Differential Mounts

MIATA NA/NB 1990-2005

Great Affordable Alternative to Mazda Competition Mounts

* FREE SHIPPING

$199.00

$127.00
REVIEWS (2)

TEAM RECOMMENDATIONS