{"product_id":"ap-racing-world-radi-cal-1-6-piston-caliper-cp8521-410mm-disc","title":"AP Racing World Radi-CAL 1 6-Piston Caliper CP8521 (Ø410mm Disc)","description":"\u003cp\u003eA six-piston World Radi-CAL 1 caliper from AP Racing for performance road cars (front): a forged two-piece aluminium body with aluminium pistons, radial mounting on 195mm centres and Ø380-410mm discs, 36mm thick. Sold per caliper in black, red, yellow or white, right or left hand, trailing or leading.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6 pistons (Ø31.8mm x 4, Ø41.3mm x 2), 58.6cm² piston area\u003c\/li\u003e\n\u003cli\u003eForged two-piece aluminium body, aluminium pistons\u003c\/li\u003e\n\u003cli\u003eRadial mount, 195mm centres\u003c\/li\u003e\n\u003cli\u003eØ380-410mm discs, 36mm thick\u003c\/li\u003e\n\u003cli\u003eBlack, red, yellow or white paint finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCheck before you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePriced per caliper: one axle needs a right-hand and a left-hand caliper.\u003c\/li\u003e\n\u003cli\u003eThis is the caliper on its own: discs and mounting brackets are not included.\u003c\/li\u003e\n\u003cli\u003eTrailing calipers sit behind the axle, leading calipers in front of it: choose the handing that matches where the caliper mounts on your car.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart numbers\u003c\/th\u003e\n\u003ctd\u003eCP8521-[2-5]S0 + colour: -2 RHT, -3 LHT, -4 RHL, -5 LHL; colour BG black, R2 red, Y23 yellow, W1 white (e.g. CP8521-2S0BG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003eWorld Radi-CAL 1 (WR1), 6-piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiston sizes\u003c\/th\u003e\n\u003ctd\u003eØ31.8mm x 4 and Ø41.3mm x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiston area\u003c\/th\u003e\n\u003ctd\u003e58.6cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003ePerformance road, front; AP Racing's factory Radi-CAL brake kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront axle, gross vehicle weight up to\u003c\/th\u003e\n\u003ctd\u003e2,400kg (front-engined car) \/ 2,800kg (rear-engined car)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003ctd\u003eForged two-piece aluminium alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePistons\u003c\/th\u003e\n\u003ctd\u003eAluminium alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eRadial, 195mm centres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiscs\u003c\/th\u003e\n\u003ctd\u003eØ380-410mm, 36mm thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting offset\u003c\/th\u003e\n\u003ctd\u003e49.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting hole\u003c\/th\u003e\n\u003ctd\u003e12.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e'PL' dimension\u003c\/th\u003e\n\u003ctd\u003e70.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (no pads)\u003c\/th\u003e\n\u003ctd\u003e4.65kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHydraulic thread\u003c\/th\u003e\n\u003ctd\u003eM10x1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBleed screw torque\u003c\/th\u003e\n\u003ctd\u003e17Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrake pad\u003c\/th\u003e\n\u003ctd\u003eCP7555D70: area 108.9cm², depth 70mm, thickness 16.75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeals\u003c\/th\u003e\n\u003ctd\u003eBoot-type dirt seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePad clip\u003c\/th\u003e\n\u003ctd\u003ePad anti-rattle clip fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePaint finish\u003c\/th\u003e\n\u003ctd\u003eBlack (BG), red (R2), yellow (Y23) or white (W1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeal repair kit\u003c\/th\u003e\n\u003ctd\u003eCP4527-EEK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpare pistons\u003c\/th\u003e\n\u003ctd\u003eØ31.8mm CP8336-116, Ø41.3mm CP8335-111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiscs AP Racing list to suit\u003c\/th\u003e\n\u003ctd\u003eØ380x36mm CP7177-448GA \/ -449GA; Ø390x36mm CP7177-406GA \/ -407GA; Ø410x36mm CP4095-318GA \/ -319GA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number 'S0'\u003c\/th\u003e\n\u003ctd\u003eS0 in the part number: side feed inlet, no anti-knockback spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFitting notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBleed screws must be at the top.\u003c\/li\u003e\n\u003cli\u003eThe disc must pass the smaller piston first (differential bore calipers).\u003c\/li\u003e\n\u003cli\u003eAP Racing say brake parts should only be fitted by people experienced in fitting disc brake systems.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AP Racing","offers":[{"title":"Black \/ Right hand trailing (RHT)","offer_id":57769642492284,"sku":"CP8521-2S0BG","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Red \/ Right hand trailing (RHT)","offer_id":57769642525052,"sku":"CP8521-2S0R2","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Right hand trailing (RHT)","offer_id":57769642557820,"sku":"CP8521-2S0Y23","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"White \/ Right hand trailing (RHT)","offer_id":57769642590588,"sku":"CP8521-2S0W1","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Left hand trailing (LHT)","offer_id":57769642623356,"sku":"CP8521-3S0BG","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Red \/ Left hand trailing (LHT)","offer_id":57769642656124,"sku":"CP8521-3S0R2","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Left hand trailing (LHT)","offer_id":57769642688892,"sku":"CP8521-3S0Y23","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"White \/ Left hand trailing (LHT)","offer_id":57769642721660,"sku":"CP8521-3S0W1","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Right hand leading (RHL)","offer_id":57769642754428,"sku":"CP8521-4S0BG","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Red \/ Right hand leading (RHL)","offer_id":57769642787196,"sku":"CP8521-4S0R2","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Right hand leading (RHL)","offer_id":57769642819964,"sku":"CP8521-4S0Y23","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"White \/ Right hand leading (RHL)","offer_id":57769642852732,"sku":"CP8521-4S0W1","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Left hand leading (LHL)","offer_id":57769642885500,"sku":"CP8521-5S0BG","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Red \/ Left hand leading (LHL)","offer_id":57769642918268,"sku":"CP8521-5S0R2","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Left hand leading (LHL)","offer_id":57769642951036,"sku":"CP8521-5S0Y23","price":650.09,"currency_code":"GBP","in_stock":true},{"title":"White \/ Left hand leading (LHL)","offer_id":57769642983804,"sku":"CP8521-5S0W1","price":650.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/CP8520_20-_20CP8521-_20CP8522_20-_20Red.jpg?v=1792589481","url":"https:\/\/fdracing.co.uk\/products\/ap-racing-world-radi-cal-1-6-piston-caliper-cp8521-410mm-disc","provider":"FD Racing","version":"1.0","type":"link"}