{"product_id":"girodisc-d1-370-porsche-front-replacement-brake-disc-rings","title":"GiroDisc D1-370 Porsche 991 Cup \/ GT4 Clubsport Factory Bells Front Replacement Brake Disc Rings","description":"\u003cp\u003eGiroDisc D1-370 front replacement rings fit the factory tooth-drive centre bells used on the listed Porsche 991 GT3 Cup and GT4 Clubsport race cars. They retain the original bell and retaining system, making the bell type a decisive part of ordering the correct rings.\u003c\/p\u003e\u003cp\u003eThe replacement iron friction rings use the factory tooth-drive interface. This is a race-car service component for the brake configuration shown below. A road car sharing the GT4 name does not establish compatibility with the Clubsport mounting system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacement cast-iron rings for the specified factory centre bells\u003c\/li\u003e\n\u003cli\u003eFactory tooth-drive mounting arrangement\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair of rings\u003c\/li\u003e\n\u003cli\u003eCentre bells and mounting hardware are not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment and Brake Setup\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003cth\u003eModel years\u003c\/th\u003e\n\u003cth\u003eRequired brake setup\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorsche 911 GT3 Cup (991)\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFront\/rear 32\/30mm thickness, use with factory Porsche centre bells and retaining hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorsche Cayman GT4, GT4 RS Clubsport\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFront\/rear 32\/30mm thickness, use with factory Porsche centre bells and retaining hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThese rings do not fit GiroDisc centre bells. Retain the appropriate factory Porsche centre bells and retaining hardware, and inspect them before assembly. Confirm the installed bell system even when the car has previously had its brakes upgraded.\u003c\/p\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eD1-370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGiroDisc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eReplacement Brake Disc Rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e380mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003ePair of rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCentre bells\u003c\/td\u003e\n\u003ctd\u003eFactory Porsche tooth-drive bells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eRecommended Supporting Upgrades\u003c\/h3\u003e\u003cp\u003eIf the car already has GiroDisc centre bells, select \u003ca href=\"\/products\/girodisc-d1-238-porsche-front-replacement-brake-disc-rings\"\u003eD1-238 rings for GiroDisc bells\u003c\/a\u003e for the compatible assembly instead.\u003c\/p\u003e\u003cp\u003eExplore \u003ca href=\"\/collections\/girodisc-porsche-brakes\"\u003eGiroDisc Porsche brakes\u003c\/a\u003e and the \u003ca href=\"\/collections\/girodisc-racing-brake-technology\"\u003ecomplete GiroDisc range\u003c\/a\u003e for supporting brake components.\u003c\/p\u003e\u003ch3\u003eInstallation and Care\u003c\/h3\u003e\u003cp\u003eUse the factory tooth-drive and retaining-ring procedure for the confirmed brake assembly. Inspect the retained bells and retaining system, check the left\/right ring orientation and follow the correct race-car servicing specification. Do not substitute the mounting procedure for a conventional GiroDisc bell-and-pin assembly.\u003c\/p\u003e\u003cp\u003eContact us to confirm availability and lead time before ordering.\u003c\/p\u003e\u003cp\u003e\u003csmall\u003eProduct images may be illustrative. Use the part number and specifications to confirm the item required.\u003c\/small\u003e\u003c\/p\u003e","brand":"Girodisc","offers":[{"title":"Default Title","offer_id":67574054584710,"sku":"D1-370","price":1188.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/0411\/2989\/files\/girodisc-d1-370.jpg?v=1791233315","url":"https:\/\/www.nineteen72performance.co.uk\/products\/girodisc-d1-370-porsche-front-replacement-brake-disc-rings","provider":"Nineteen72 Performance","version":"1.0","type":"link"}