{"product_id":"pro-system-porsche-911-rsr-930-style-front-rear-caliper-set-stock-rotor-compatible","title":"Pro-System Porsche 911 RSR \/ 930-Style Brake Calipers | Front, Rear or Complete Set","description":"\u003cp\u003e\u003cstrong\u003eTHE RSR LOOK. KEEP YOUR STOCK ROTORS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor the classic Porsche owner who wants the unmistakable finned 917\/RSR-style brake caliper without replacing the entire brake system: this \u003cstrong\u003econfigurable caliper offering\u003c\/strong\u003e lets you order just the front pair, just the rear pair, or a discounted set of all four Pro-System four-piston RSR-style calipers. Designed for use with compatible original-style stock rotor arrangements, it gives 911 owners a compelling path to a vintage motorsport appearance without automatically requiring a new two-piece rotor package.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose a front pair, a rear pair, or all four calipers.\u003c\/strong\u003e Choose the correct rear lug spacing: \u003cstrong\u003e3.0-inch short lug\u003c\/strong\u003e for compatible standard 911 rear mounts, or \u003cstrong\u003e3.5-inch long lug\u003c\/strong\u003e for compatible 930-style rear mounts. Stock-rotor compatibility is application-specific: confirm rotor diameter, thickness, offset, front strut mounting, rear trailing-arm mounting and wheel clearance before ordering. Not every factory rotor used across 1975–1989 911\/930 models is interchangeable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e15-inch and 16-inch Fuchs:\u003c\/strong\u003e Pro-System RSR calipers have been fitted beneath these vintage wheel sizes in suitable configurations. Exact wheel barrel, spoke, offset and spacer clearance must be checked for your particular build.\u003c\/p\u003e\n\u003ch2\u003eWhat Makes These Different?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeriod-correct finned styling:\u003c\/strong\u003e classic 917\/RSR-inspired silhouette, ideal for 911 SC, Carrera and RSR-style builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetain compatible stock rotors:\u003c\/strong\u003e no requirement to buy Pro-System two-piece rotors as part of this caliper package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth axles included:\u003c\/strong\u003e two front and two rear four-piston calipers, not a single-axle set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo rear mounting configurations:\u003c\/strong\u003e 3.0-inch and 3.5-inch lug spacing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceable friction system:\u003c\/strong\u003e RSR\/930-style pad profile, with pad selection matched to intended use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCaliper Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 10px; border-bottom: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border-bottom: 1px solid #ddd;\"\u003eFront\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border-bottom: 1px solid #ddd;\"\u003eRear\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eFour piston\u003c\/td\u003e\n\u003ctd\u003eFour piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid #eee;\"\u003ePiston size\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid #eee;\"\u003eCaliper weight (catalog)\u003c\/td\u003e\n\u003ctd\u003eApprox. 7 lb each\u003c\/td\u003e\n\u003ctd\u003eApprox. 7 lb each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid #eee;\"\u003eRear mounting\u003c\/td\u003e\n\u003ctd\u003eVerify front strut mounting\u003c\/td\u003e\n\u003ctd\u003e3.0-inch or 3.5-inch lug spacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid #eee;\"\u003ePad reference\u003c\/td\u003e\n\u003ctd\u003eRSR\/930-style profile; 17.5mm pad reference\u003c\/td\u003e\n\u003ctd\u003eRSR\/930-style profile; 17.5mm pad reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eWhat's Included — Select Your Package\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne left and one right front Pro-System RSR-style caliper\u003c\/li\u003e\n\u003cli\u003eOne left and one right rear Pro-System RSR-style caliper in selected lug spacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e rotors, rotor hats, brake pads, brake lines, mounting hardware or parking-brake accommodation. Ancillary parts and installation requirements depend on the vehicle. Consult a qualified Porsche brake installer before ordering.\u003c\/p\u003e\n\u003ch2\u003eCaliper Replacement Part Numbers\u003c\/h2\u003e\n\u003cstyle\u003e#rsr-caliper-parts table{width:100%;border-collapse:collapse}#rsr-caliper-parts th,#rsr-caliper-parts td{text-align:left;padding:11px;border-bottom:1px solid #dfe4e8;overflow-wrap:anywhere}#rsr-caliper-parts tbody tr:nth-child(even){background:#f6f8fa}@media(max-width:600px){#rsr-caliper-parts table,#rsr-caliper-parts tbody,#rsr-caliper-parts tr,#rsr-caliper-parts td{display:block;width:100%;box-sizing:border-box}#rsr-caliper-parts thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#rsr-caliper-parts tr{padding:8px;border-bottom:1px solid #ddd}#rsr-caliper-parts td{padding:3px 0;border:0}#rsr-caliper-parts td:first-child{font-weight:600}} \u003c\/style\u003e\n\u003csection id=\"rsr-caliper-parts\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeft front caliper\u003c\/td\u003e\n\u003ctd\u003eCAR.100457\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRight front caliper\u003c\/td\u003e\n\u003ctd\u003eCAR.100458\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeft rear caliper — 3.5-inch lug\u003c\/td\u003e\n\u003ctd\u003eCAR.100459\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRight rear caliper — 3.5-inch lug\u003c\/td\u003e\n\u003ctd\u003eCAR.100460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeft rear caliper — 3.0-inch lug\u003c\/td\u003e\n\u003ctd\u003eCAR.100461\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRight rear caliper — 3.0-inch lug\u003c\/td\u003e\n\u003ctd\u003eCAR.100462\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad shape reference (not included)\u003c\/td\u003e\n\u003ctd\u003eFDP – PSD1004 \/ PAG1203RS***B (compound-specific)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eWant the Complete Upgrade?\u003c\/h2\u003e\n\u003cp\u003eFor an integrated front-and-rear installation with Pro-System ventilated two-piece rotor assemblies, hats, rotor hardware, brake lines and pads, choose the Pro-System 911 RSR Complete Brake Kit instead. The complete kit also offers an optional parking-brake accommodation upgrade.\u003c\/p\u003e","brand":"Pro-System","offers":[{"title":"Front Pair","offer_id":49373758587188,"sku":"CAR.100457\/458","price":2990.0,"currency_code":"USD","in_stock":true},{"title":"Rear Pair \/ 3.0-inch Lug","offer_id":49373758619956,"sku":"CAR.100461\/462","price":2990.0,"currency_code":"USD","in_stock":true},{"title":"Rear Pair \/ 3.5-inch Lug","offer_id":49373758652724,"sku":"CAR.100459\/460","price":2990.0,"currency_code":"USD","in_stock":true},{"title":"Front + Rear \/ 3.0-inch Rear Lug","offer_id":49373757636916,"sku":"CAR.100457\/458+CAR.100461\/462","price":5681.0,"currency_code":"USD","in_stock":true},{"title":"Front + Rear \/ 3.5-inch Rear Lug","offer_id":49373757669684,"sku":"CAR.100457\/458+CAR.100459\/460","price":5681.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/8534\/7636\/files\/RSCaliper.jpg?v=1794343090","url":"https:\/\/alconkits.com\/products\/pro-system-porsche-911-rsr-930-style-front-rear-caliper-set-stock-rotor-compatible","provider":"Alcon Brake Kits","version":"1.0","type":"link"}