{"product_id":"hastings-3-1-2-bore-piston-ring-set-chr-moly-040","title":"Hastings, 3-1\/2\" bore piston ring set. Chr\/Moly. +.040\"","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eStd cyl. bore: 3.4980\" (88.85 mm). \u003cbr\u003e\u003cbr\u003e1st. ring: 1.6mm. \u003cbr\u003e\u003cbr\u003e2nd ring: 1.6mm. \u003cbr\u003e\u003cbr\u003eoil ring: 4.0mm. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eTech tip: Piston grooves vs piston rings. \u003cbr\u003e\u003cbr\u003eIt's not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings, the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3-piece flex vent type. Ring heights are listed for reference. \u003cbr\u003e\u003cbr\u003eTech tip: Piston oversizes. \u003cbr\u003e\u003cbr\u003eFor each oversize cylinder diameter will increase with .010\" (0.254mm). The standard bore of the cylinder is listed for reference. \u003cbr\u003e\u003cbr\u003e(Information provided by Hastings Manufacturing Company, Inc.).\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctr\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003ctd\u003e2CY\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003e84-99 Evo Big Twin; 88-03 XL Sportster 1200 (NU)\u003c\/p\u003e\u003ch2\u003ePart numbers\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplier SKU\u003c\/th\u003e\n\u003ctd\u003e908666\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part\u003c\/th\u003e\n\u003ctd\u003e2M6164040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":58633235431768,"sku":"908666","price":33.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8235\/0680\/files\/908440k_f6ab75dc-9177-4bed-9e9c-1e6a49e41963.jpg?v=1791033422","url":"https:\/\/deathproofcycles.com\/products\/hastings-3-1-2-bore-piston-ring-set-chr-moly-040","provider":"Deathproof Cycles","version":"1.0","type":"link"}