{"product_id":"spark-exhaust-stainless-tube-35mm-500mm","title":"Spark Exhaust Stainless Steel Tube Ø 35 × 1.0 mm 500 mm Universal G9011","description":"\u003cp\u003eThirty-five millimetres of straight stainless, half a metre at a time. A size that sits between the small-bore work and the middleweight sizes, and gets used for both.\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 35 mm outside, 1.0 mm wall thickness.\u003c\/li\u003e\n\u003cli\u003e500 mm long.\u003c\/li\u003e\n\u003cli\u003eSold as fabrication stock.\u003c\/li\u003e\n\u003cli\u003eSpark part number G9011, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eA Size With a Silencer Behind It\u003c\/h2\u003e\u003cp\u003eThirty-five is the internal bore of Spark's Force db killer for small twins — the one it names against the Yamaha R3 and Kawasaki Ninja 400 — and of the Moto GP inserts. Those are the machines and the silencers this tube diameter suits.\u003c\/p\u003e\u003cp\u003eOn a 300 to 500 cc twin it is a reasonable link diameter. On a litre bike it is a restriction.\u003c\/p\u003e\u003ch2\u003eFitting Tube to Tube\u003c\/h2\u003e\u003cp\u003eTwo pieces of 35 mm tube cannot be pushed into one another; the outside diameter is the outside diameter. Joining them means either a butt weld, a sleeve made from the next size up, or a swaged end — and on a one-off system the sleeve is usually the honest answer, because it is the joint that can be aligned before it is welded.\u003c\/p\u003e\u003cp\u003eSpark's own systems use slip joints for exactly that reason. A butt weld looks better and forgives nothing.\u003c\/p\u003e\u003ch2\u003eHeat Tint\u003c\/h2\u003e\u003cp\u003eStainless colours where it has been hot. On a finished exhaust that is normal and eventually attractive; on a weld it is a diagnostic. A straw or light-gold tint next to the bead is fine; a grey, powdery band means the weld got too hot and the chromium has been drawn out of the surface.\u003c\/p\u003e\u003cp\u003eThat band will rust. Pickling paste removes it if you catch it early.\u003c\/p\u003e\u003ch2\u003eBends in This Diameter\u003c\/h2\u003e\u003cp\u003eSpark offers 35 mm as a ready-made 30°, 45° and 90° bend — articles G9129, G9130 and G9131. Between those and this straight length a complete small-bore run can be assembled without bending anything in the workshop, which matters because thin-wall stainless is unforgiving of a bad bend.\u003c\/p\u003e\u003ch2\u003eHalf a Metre at a Time\u003c\/h2\u003e\u003cp\u003eSpark supplies this in a single 500 mm length. Most link pipes need less; most full systems need more than one. Order accordingly, and cut generously — a piece can always be shortened.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53617858969866,"sku":"G9011","price":22.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/5c0fcb22c4a53_45ea0d1b-9553-4027-9f38-b74f79a067b2.png?v=1788362685","url":"https:\/\/inter-pace.com\/en-it\/products\/spark-exhaust-stainless-tube-35mm-500mm","provider":"Inter-Pace","version":"1.0","type":"link"}