{"product_id":"spark-exhaust-bent-tube-30-degrees-50mm","title":"Spark Exhaust Bent Tube 30° Ø 50 × 1.0 mm Stainless Steel Universal G9116","description":"\u003cp\u003eFifty millimetres through thirty degrees. The round number that most exhaust hardware is designed around, in the gentlest angle Spark forms.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMandrel-formed 30° bend, AISI 304 stainless steel.\u003c\/li\u003e\n\u003cli\u003eØ 50 mm outside, 1.0 mm wall thickness.\u003c\/li\u003e\n\u003cli\u003eStraight tangents at both ends for cutting and welding.\u003c\/li\u003e\n\u003cli\u003eOne of two diameters Spark also bends through 180°, under article G9165.\u003c\/li\u003e\n\u003cli\u003eMatches Spark's 50 mm straight tube, article G9005.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9116, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Interface Size\u003c\/h2\u003e\u003cp\u003eClamps, sleeves, silencer inlets and adapters from a dozen manufacturers cluster around fifty millimetres. If a project has to bring parts from more than one supplier together, this is the diameter most likely to line up without an adapter in between.\u003c\/p\u003e\u003cp\u003eThat convenience is the main reason to design a custom run at fifty even when a slightly different figure would suit the engine marginally better.\u003c\/p\u003e\u003ch2\u003eWhat a Shallow Bend Is For\u003c\/h2\u003e\u003cp\u003eThirty degrees does not turn a corner. It leans a run — over a frame rail, past a shock reservoir, around the edge of a swingarm — while the exhaust carries on broadly in the same direction.\u003c\/p\u003e\u003cp\u003eTwo of them opposed, with a straight between, produce a parallel offset. Lengthening or shortening that straight sets how far the run steps sideways, which makes a pair of these bends an adjustment rather than a fixed shape.\u003c\/p\u003e\u003ch2\u003eClamping Without Marking\u003c\/h2\u003e\u003cp\u003eA fifty millimetre thin-wall tube goes oval in bare vice jaws, and oval is the one thing that stops a slip joint working. Clamp on the straight tangent, use soft jaws or a wooden vee block, and never clamp on the curve itself.\u003c\/p\u003e\u003cp\u003eAn out-of-round end can be recovered with a mandrel and patience. It is faster not to cause it.\u003c\/p\u003e\u003ch2\u003eWeight Per Bend\u003c\/h2\u003e\u003cp\u003eA 30° bend at this diameter weighs under two hundred grams. It is a figure worth knowing when a system is being planned in detail: a run with six bends in it is a kilogram of metal before the straights and the silencer are counted.\u003c\/p\u003e\u003ch2\u003eMarking a Curved Cut\u003c\/h2\u003e\u003cp\u003eWrap a strip of paper round the tube, line up the overlapping edges and mark along it. That gives a square line on a curved surface, which is not something a rule and a marker will do.\u003c\/p\u003e\u003cp\u003eFreehand marking on a bend is the usual reason a butt joint ends up with a gap on one side and a double-thickness weld on the other.\u003c\/p\u003e\u003ch2\u003eOrdering\u003c\/h2\u003e\u003cp\u003eOne bend per article. Spark makes 30°, 45°, 90° and 180° in this diameter, plus a 500 mm straight length.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53618100666634,"sku":"G9116","price":32.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/5c0e93af08474_b21b2910-fe93-4279-b312-5f6ee4f1e2ff.png?v=1788354211","url":"https:\/\/inter-pace.com\/en-fr\/products\/spark-exhaust-bent-tube-30-degrees-50mm","provider":"Inter-Pace","version":"1.0","type":"link"}