{"product_id":"s-s-cycle-breather-reed-valves-crankcase-0-030-oversize-evolution-big-twin-93-99-31-2100","title":"S\u0026S CYCLE Breather Reed Valves - Crankcase - +0.030\" Oversize - Evolution Big Twin '93-'99 31-2100","description":"\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNew-style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the crankcase becomes greater than pressure in the cam chest, and close when pressure in the cam chest is equal to or greater than pressure in the crankcase\u003c\/li\u003e\n\u003cli\u003eBy opening and closing \"on demand,\" the reed valves automatically compensate for lag time associated with accelerating the mass of air as it is forced out of the crankcase, increasing performance and stopping high-rpm oil carryover in engines with marginal piston ring seal\u003c\/li\u003e\n\u003cli\u003eInstallation is fast and simple; no aligning timing marks, and no rotating parts\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Shop Tucker Speed?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHarley-Davidson specialists with real-world parts and performance experience\u003c\/li\u003e\n\u003cli\u003eFast shipping\u003c\/li\u003e\n\u003cli\u003eExpert technical support from a motorcycle shop that knows the products we sell\u003c\/li\u003e\n\u003cli\u003ePerformance parts and accessories we trust on our own motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":54370528624864,"sku":"0920-0009","price":171.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0076\/0578\/0557\/files\/12594.png?v=1787420606","url":"https:\/\/tuckerspeed.com\/products\/s-s-cycle-breather-reed-valves-crankcase-0-030-oversize-evolution-big-twin-93-99-31-2100","provider":"Tucker Speed","version":"1.0","type":"link"}