AP Racing Street Edition PRO5000R? Detailed AP Second-generation Radi-CAL Series Calipers

With the successful launch of the Pro 5000R series of calipers, AP Racing used the same design concept on the high-performance street version, the Radi-CAL, which led to the birth of the new Radi-CAL second-generation series of calipers.

         Radi-CAL's second-generation series of calipers were successfully unveiled at the 2016 SEMA refit exhibition. Let's take a look at the calipers of the exhibition at the time.

Having seen the pictures of the new generation of Radi-CAL calipers, how is it different from the previous generation of Radi-CAL? Today we will come to a detailed analysis.

The main advantages of Radi-CAL design concept:

· Large increase in stiffness - Stiffness increases by 30+% regardless of static or dynamic conditions, which means better foot feel and longer life.

· Effective weight loss - Removes unnecessary parts while ensuring high strength.

· Optimized airflow slots - Air flows more efficiently and passes through calipers, providing superior heat dissipation.

· Easy installation - Asymmetrical thickness distribution and internal oil circuit design make it more suitable for compact space.

        Combining these advantages eventually we get a personalized caliper with different appearance. They are wider than conventional calipers, but due to the asymmetrical form, most of the weight is on the caliper centerline. Radi-CAL's design can be said to be an example of efficiency. All unnecessary parts are either completely removed or placed in a more reasonable position to bear the load.

However, with the pro-5000R series hot, along with the problems come. Since the Pro 5000R series calipers are set as competitive calipers, there are feedback noise problems after use. However, we must know that the athletic calipers are not equipped with dust jackets, anti-sliding shrapnel and anti-corrosion paints like the street calipers, so athletic calipers will naturally cause noise and other problems on street cars.

       But with the birth of the second-generation Radi-CAL calipers, these problems will be solved. The new series can be said to be the street version of the Pro 5000R series of calipers. It maintains a high-value, high-performance appearance, and incorporates dust jackets, shrapnel and anti-corrosion paint coatings for daily use. And the second generation caliper compared to Radi-CAL first generation weight reduction of 20%, caliper stiffness increased by 25%, corresponding to about 10% increase in braking force.

 95 series offers six-piston and four-piston, six-piston series - CP9560, CP9561 and CP9562 can match 362-390mm disc, four-piston series - CP9540, CP9541 and CP9542 can match 355-380mm disc, AP Racing second generation Radi-CAL The caliper also comes with an anti-counterfeit identification code, the original color red, black and silver options.

AP Racing official data shows that the new CP9540 uses the same CP60600 D55 as the 8530, while the CP9560 uses the same CP7555 D70 as the 8520, which increases the versatility of the skin.