{"product_id":"ap-racing-pro-5000r-cp9660-cp9440-front-and-rear-caliper-set-suits-high-performance-track-race-big-brake-kit","title":"2 SET - AP Racing PRO 5000R CP9660 + CP9440 Front and Rear CALIPER set suits High Performance \/Track \/Race Big Brake Kit","description":"\u003cp\u003e\u003cstrong\u003eAP Racing PRO 5000R CP9660 + CP9440 Front and Rear CALIPER set suits High Performance \/Track \/Race Big Brake Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLight Weight Race Calipers\u003c\/p\u003e\n\u003cp\u003e2 Pair of AP RACING PRO 5000R Calipers for?Front and Rear \u003c\/p\u003e\n\u003cp\u003eUK MADE PERFORMANCE RACE CALIPERS \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe AP Racing Pro 5000R\u003c\/strong\u003e is a premier range of radial-mount brake calipers designed specifically for motorsport, utilizing a forged, asymmetrical Radi-CAL™ design to achieve maximum stiffness and minimum weight. \u003cbr\u003eKey Product Lineup\u003cbr\u003e\u003cstrong\u003eModel     Type    Approx. Weight    Disc Compatibility    Features\u003c\/strong\u003e\u003cbr\u003eCP9660    6-Piston    2.78 kg    355–380mm    Balanced weight and performance\u003cbr\u003eCP9668    6-Piston    3.10 kg    378–390mm    Supports thick 25mm pads for endurance\u003cbr\u003eCP9440    4-Piston    2.16 kg    315–330mm    Lightweight front option for smaller cars\u003cbr\u003eCP9449    4-Piston    2.20 kg    299–380mm    Compact design, typically used for rear setups\u003cbr\u003e\u003cstrong\u003eCore Technologies\u003c\/strong\u003e\u003cbr\u003eRadi-CAL™ Concept: An asymmetrical body shape that optimizes material distribution based on dynamic loads during braking, increasing stiffness by over 30% compared to traditional designs.\u003cbr\u003e\u003cstrong\u003eTwo-Piece Forged Body:\u003c\/strong\u003e High-pressure drop-forging provides the strength of billet at a more accessible price point for club racers.\u003cbr\u003eRacing Internals: Features ventilated Stainless Steel Pistons to resist heat transfer and High-Temperature Seals.\u003cbr\u003e\u003cstrong\u003eAnti-Knockback (AKB) Springs:\u003c\/strong\u003e Standard 4lb springs prevent piston retraction during aggressive cornering, ensuring a consistent and immediate pedal feel. \u003cbr\u003eRace vs. Street Considerations\u003cbr\u003e\u003cstrong\u003eNo Dust Seals: \u003c\/strong\u003eThese calipers lack external rubber dust boots to prevent melting under race temperatures. Consequently, they require more frequent cleaning if used on the road.\u003cbr\u003e\u003cstrong\u003eMaintenance\u003c\/strong\u003e: AP Racing recommends regular reconditioning and seal replacement, especially if calipers frequently exceed 200°C.\u003cbr\u003eCorrosion Resistance: Most models feature a hard-anodized gray finish, which is highly durable for track use but lacks the aesthetic \"show\" finish of street-specific kits. \u003cbr\u003e\u003c\/p\u003e","brand":"AP Racing","offers":[{"title":"Default Title","offer_id":46575512617122,"sku":"CP9660-CP9440-PRO5000R(CALIPERS)","price":6789.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/5579\/5618\/files\/20260209120849_40_1055.jpg?v=1770599692","url":"https:\/\/999brakes.com\/products\/ap-racing-pro-5000r-cp9660-cp9440-front-and-rear-caliper-set-suits-high-performance-track-race-big-brake-kit","provider":"999brakes","version":"1.0","type":"link"}