{"product_id":"set-rx4-4-piston-racing-brake-kit","title":"SET RX4 Competition Series Big Brake Kit | 4-Piston | Forged 6082-T6","description":"\u003ch2\u003eSET RX4 4-Piston Racing Brake Kit\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompetition engineering for the street.\u003c\/strong\u003e The RX4 shares the same form factor as the TX4 but with a completely different engineering philosophy: 25ms pressure build time (vs 45ms), nickel-manganese alloy pistons (vs aluminium), 240°C seal rating (vs 180°C), and hard-anodised surface treatment (vs paint).\u003c\/p\u003e\n\n\u003ch3\u003eTX vs RX: The Core Differences\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eTX4 (Street)\u003c\/th\u003e\n\u003cth\u003eRX4 (Racing)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Build Time\u003c\/td\u003e\n\u003ctd\u003e45ms\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e25ms\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Material\u003c\/td\u003e\n\u003ctd\u003eAluminium alloy\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNickel-manganese alloy\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal Temperature\u003c\/td\u003e\n\u003ctd\u003e180°C\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e240°C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Treatment\u003c\/td\u003e\n\u003ctd\u003ePaint\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHard anodising\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003e7075 aluminium\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e7075 aluminium\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2.72kg\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliper Body:\u003c\/strong\u003e 6082-T6 forged aluminium, hard anodised\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePistons:\u003c\/strong\u003e 4-piston, nickel-manganese alloy — 36mm×2 + 41.3mm×2 (front) \/ 27mm×4 (rear)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Area:\u003c\/strong\u003e 47.1cm² (front) \/ 22.9cm² (rear)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.72kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Build Time:\u003c\/strong\u003e 25ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Temperature Rating:\u003c\/strong\u003e 240°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePad Friction Area:\u003c\/strong\u003e 61cm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBracket Material:\u003c\/strong\u003e 7075 aluminium\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIncluded Brake Pad: ST Series Competition Compound\u003c\/h3\u003e\n\u003cp\u003eBenchmarked against MX72 and Dixcel Z. Friction coefficient 0.52–0.60. Operating temperature range 150–700°C (constant 500°C). Low dust, no paint damage. Exceptional initial bite without warm-up. Street-legal with genuine track capability.\u003c\/p\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eHigh-performance street cars, track-day enthusiasts, and competition vehicles. Small\/compact chassis running 15–18 inch wheels who need race-grade braking response.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eComplete kit includes hard-anodised caliper, 7075 bracket, GG-series disc, ST brake pads, braided lines, and mounting hardware.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The SET Performance Gauge is sold separately and is not included in the brake kit.\u003c\/p\u003e\n\u003c!-- LEAD TIME --\u003e\n\u003cdiv class=\"lead-time\"\u003e\n\u003cp\u003e\u003cstrong\u003eLead Time:\u003c\/strong\u003e Approximately 5–14 business days.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SET Motor Sport","offers":[{"title":"285x28","offer_id":50277171167545,"sku":"RX4-28528","price":2071.0,"currency_code":"AUD","in_stock":true},{"title":"330x28","offer_id":50277171200313,"sku":"RX4-33028","price":2236.0,"currency_code":"AUD","in_stock":true},{"title":"355x28","offer_id":50277171233081,"sku":"RX4-35528","price":2595.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0841\/1922\/4633\/files\/RX4_Racing_Edition_SET_Brake_Kit.png?v=1750759403","url":"https:\/\/automodexpress.com\/products\/set-rx4-4-piston-racing-brake-kit","provider":"AME Motorsport","version":"1.0","type":"link"}