{"product_id":"hastings-3-1-2-bore-piston-rings-chr-moly-std","title":"Hastings, 3-1\/2\" bore piston rings chr\/moly. STD","description":"\u003cp\u003eStd cyl. bore: 3.498\" (88.85mm).  1st ring: 1.6mm.  2nd ring: 1.6mm.  oil ring: 4.75mm.    Tech tip: Piston grooves vs piston rings.  It''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.  Tech tip: Piston oversizes.  For each oversize cylinder diameter will increase with .010\" (0.254mm). The standard bore of the cylinder is listed for reference.  (Tech tip information provided by Hastings Manufacturing Company; Inc.)\u003c\/p\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":53039223537992,"sku":"908530","price":43.9,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/holydeath.com\/products\/hastings-3-1-2-bore-piston-rings-chr-moly-std","provider":"Holy Death Motorcycle Co.","version":"1.0","type":"link"}