{"product_id":"jetprime-pair-system-eliminator-cover-ducati-supersport-939-2017-jp-es-041","title":"JetPrime PAIR system eliminator cover for Ducati SuperSport 939 (2017–2020) – JP ES 041","description":"\u003cp\u003eThe JP ES 041 is what an owner fits to the SuperSport 939 when the reeds in the secondary air housing have cracked, which happens with heat cycles rather than mileage.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDucati SuperSport 939 (2017–2020)\u003c\/li\u003e\n\u003cli\u003eBlanks the secondary air ports in the cylinder head\u003c\/li\u003e\n\u003cli\u003eMachined from solid aluminium\u003c\/li\u003e\n\u003cli\u003eO-ring sealed, no jointing compound\u003c\/li\u003e\n\u003cli\u003eOriginal fastener positions\u003c\/li\u003e\n\u003cli\u003eStandard housing refits at any time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTwelve Thousand Kilometre Services\u003c\/h2\u003e\n\u003cp\u003eThe 11 degree engine means ordinary maintenance costs, which matters a great deal on a motorcycle bought to be used regularly.\u003c\/p\u003e\n\u003ch2\u003eThe Reed Assembly\u003c\/h2\u003e\n\u003cp\u003eA moulded housing holding one reed per port, bolted to the cylinder head and fed by a hose from the airbox. It is the half that physically admits the air.\u003c\/p\u003e\n\u003ch2\u003eOn a Naked Ducati\u003c\/h2\u003e\n\u003cp\u003eThe top of the engine is part of what the motorcycle looks like, and a milled cover reads as deliberate where a capped hose reads as unfinished.\u003c\/p\u003e\n\u003ch2\u003eWhat the Reeds Do\u003c\/h2\u003e\n\u003cp\u003eThey allow air in one direction only, so exhaust pressure cannot push gas back towards the filter. A crack removes that protection entirely.\u003c\/p\u003e\n\u003ch2\u003eThe Desmodromic Head\u003c\/h2\u003e\n\u003cp\u003eDucati's valve gear is mechanically closed rather than sprung, which has nothing to do with the secondary air system bolted to the outside of the casting.\u003c\/p\u003e\n\u003ch2\u003eTwenty Minutes of Work\u003c\/h2\u003e\n\u003cp\u003eThe rest of the job is bodywork. Anybody planning the evening should allow for the disassembly rather than for the part itself.\u003c\/p\u003e\n\u003ch2\u003eAn Inspection Would Find Nothing\u003c\/h2\u003e\n\u003cp\u003eOriginal fastener positions, original torque and an unmarked sealing face. The exchange leaves no evidence beyond the cover itself, and the standard housing refits in twenty minutes with no replacement seals required whenever the motorcycle needs to be back at specification.\u003c\/p\u003e\n\u003ch2\u003eThe Hose Route to the Airbox\u003c\/h2\u003e\n\u003cp\u003eIt runs from the head up and forward into the airbox, usually clipped at two or three points along the way. Following it before anything is undone shows exactly where the intake end terminates, which is the fitting that has to be closed once the housing is gone.\u003c\/p\u003e\n\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDucati SuperSport 939 (2017–2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eJP ES 041\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eJetPrime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCNC-milled Ergal 7075\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eDucati SuperSport 939 (2017–2020)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003ePlug-and-play, no wiring harness modifications required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"JetPrime","offers":[{"title":"Default Title","offer_id":53628713206026,"sku":"JP ES 041","price":2868.0,"currency_code":"NIO","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/033_00_685aa959-ef86-4a1e-a12b-dc847c17594d.png?v=1788550241","url":"https:\/\/inter-pace.com\/en-ni\/products\/jetprime-pair-system-eliminator-cover-ducati-supersport-939-2017-jp-es-041","provider":"Inter-Pace","version":"1.0","type":"link"}