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AP Racing Radi-CAL™ R4
AP Racing Radi-CAL™ R4
Description:Radi-CAL™ R4 has been designed to perform better than any other product at the extremes of heavy duty braking performance in the top levels of racing.
With the highest dry boiling point of any racing brake fluid currently available, at 340°C (644°F), R4 stands alone.
With outstanding resistance to vapour lock / pedal fade under the most exacting conditions. A higher vapour lock point means a firmer brake pedal at the extremes of brake temperature.
Enhanced lubricity, means this fluid is an even better lubricant than PRF660 itself a market leader. This helps the life of the metal moving parts of the brake system and increases system efficiency.

It should be noted that before using R4 fluid, The system should be thoroughly purged with new R4 brake fluid.


AP Racing Radi-CAL™ R4 has a New ‘Typical’ Dry Boiling Point of 340°C

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