{"product_id":"spark-exhaust-stainless-tube-52mm-500mm","title":"Spark Exhaust Stainless Steel Tube Ø 52 × 1.0 mm 500 mm Universal G9013","description":"\u003cp\u003eFifty-two millimetres. Two more than the standard size — which is exactly what makes it useful.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStraight exhaust tube, AISI 304 stainless steel.\u003c\/li\u003e\n\u003cli\u003eØ 52 mm outside, 1.0 mm wall thickness.\u003c\/li\u003e\n\u003cli\u003e500 mm long.\u003c\/li\u003e\n\u003cli\u003eSlips over 50 mm tube as a sleeve.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9013, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Sleeve Size for 50\u003c\/h2\u003e\u003cp\u003eFifty-two outside with a one millimetre wall gives fifty inside. A 50 mm tube slides into it without machining, expanding or swaging — which turns a butt weld into a slip joint and a permanent system into a serviceable one.\u003c\/p\u003e\u003cp\u003eA single 500 mm length yields half a dozen sleeves. On a build using 50 mm tube throughout, it is the cheapest useful article on the page.\u003c\/p\u003e\u003ch2\u003eCrevice Corrosion\u003c\/h2\u003e\u003cp\u003eThe one drawback of a slip joint is that it creates a gap where moisture and salt can sit. On a road bike, that gap is where a stainless system will corrode first, long before any of the exposed surface does.\u003c\/p\u003e\u003cp\u003eAssembling with exhaust paste and making sure the joint drains rather than collects handles it. Do not seal a joint that has to slide.\u003c\/p\u003e\u003ch2\u003eAs a Run in Its Own Right\u003c\/h2\u003e\u003cp\u003eFifty-two also works as the main section on a large-capacity twin or a four with a generous collector. At this diameter gas speed is low at small throttle openings, so it belongs on engines that spend their time above half revs.\u003c\/p\u003e\u003ch2\u003eFitting Over a Bend\u003c\/h2\u003e\u003cp\u003eA sleeve will not slide onto the flattened section of a poorly made bend. If you are joining to a home-bent piece, check the ovality at the end before cutting a sleeve to length — it is easier to round the tube end than to open the sleeve.\u003c\/p\u003e\u003ch2\u003eA Rack Item\u003c\/h2\u003e\u003cp\u003eWorkshops that build more than one system keep a length of this diameter on the rack permanently. It is the article that turns a mistake into a repair: a butt weld that came out crooked can be cut back and sleeved instead of scrapped.\u003c\/p\u003e\u003ch2\u003eCutting Sleeves to Length\u003c\/h2\u003e\u003cp\u003eA sleeve wants between one and one and a half tube diameters of overlap — sixty to eighty millimetres at this size. Shorter and the joint can cock and leak; longer adds weight and makes the assembly harder to separate once carbon has built up inside it.\u003c\/p\u003e\u003ch2\u003eOrdering\u003c\/h2\u003e\u003cp\u003eOne 500 mm length per article.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617861099786,"sku":"G9013","price":27.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/5c0fcb22c4a53_b068c6b5-f2bb-4d6c-8639-dd20eb04e6a2.png?v=1788362726","url":"https:\/\/inter-pace.com\/products\/spark-exhaust-stainless-tube-52mm-500mm","provider":"Inter-Pace","version":"1.0","type":"link"}