{"product_id":"search-q-ds-750840","title":"Replacement Piston Rings - Piston Rings - 3.498\" Standard - Evolution Big Twin [DS-750840]","description":"\u003cp\u003eKit Includes: • 2x Top Compression Rings • 2x Second Compression Rings • 2x Expander Rings • 4x Steel Rails\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes top compression rings, second compression rings, and oil control rings\u003c\/li\u003e\n\u003cli\u003eTop Compression Rings are Barrel Face\u003c\/li\u003e\n\u003cli\u003eHelps in the the heat transfer process between the piston and cylinder wall\u003c\/li\u003e\n\u003cli\u003eControls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft\u003c\/li\u003e\n\u003cli\u003eSecond Compression Ring are Reverse Torsional Taper Face\u003c\/li\u003e\n\u003cli\u003ePromotes side sealing that prevents oil from being forced under and behind the ring resulting in better oil economy\u003c\/li\u003e\n\u003cli\u003eReverse twist ring along with a taper-machined ring face duplicates the OD bottom side scraping edge of a positive twist torsional ring\u003c\/li\u003e\n\u003cli\u003eOil Control Rings are Three Piece Flex Vent\u003c\/li\u003e\n\u003cli\u003eThree-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore\u003c\/li\u003e\n\u003cli\u003eProvides uniform pressure through four steel rails and two expanders assuring positive oil control\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eDue to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.\u003c\/li\u003e\n\u003cli\u003eIncludes enough rings for two pistons (unless noted).\u003c\/li\u003e\n\u003cli\u003eTwo rings per groove, except for the rails that will be two rail rings per one expander ring.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HASTINGS","offers":[{"title":"Default Title","offer_id":43094740893801,"sku":"DS-750840","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/9760\/1897\/files\/38F8870C-0A25-4785-BFF8-5624E3382BAA.png?v=1775167337","url":"https:\/\/road-rage-bikeworks.myshopify.com\/products\/search-q-ds-750840","provider":"Road Rage Bikeworks","version":"1.0","type":"link"}