{"product_id":"arrow-72639akn-terminale-maxi-race-tech-dark-bmw-f-750-850-gs","title":"Arrow 72639AKN Maxi Race-Tech Dark Silencer – BMW F 750 GS and F 850 GS 2021-2024","description":"\u003cdiv style=\"font-family:'Segoe UI',Arial,sans-serif;max-width:900px;margin:0 auto;color:#222;line-height:1.7;\"\u003e\n\u003cp style=\"font-size:16px;\"\u003eThe \u003cstrong\u003eArrow 72639AKN\u003c\/strong\u003e exhaust is a slip-on muffler from the \u003cstrong\u003eMaxi Race-Tech\u003c\/strong\u003e line, with a \u003cstrong\u003e\"Dark\" painted aluminum\u003c\/strong\u003e body and a \u003cstrong\u003ecarbon fiber\u003c\/strong\u003e end cap, \u003cstrong\u003eECE approved\u003c\/strong\u003e for \u003cstrong\u003eBMW F 750 GS\u003c\/strong\u003e and \u003cstrong\u003eBMW F 850 GS 2021-2024\u003c\/strong\u003e (Euro 5, vehicle type Arrow MG85). It mounts to the original exhaust system and already includes the stainless steel mid-pipe. Product code 72639AKN.\u003c\/p\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Strengths\u003c\/h3\u003e\n\u003cul style=\"font-size:15px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoad legal\u003c\/strong\u003e – on the official Arrow diagrams for both models, the 72639AKN bears the \u003cstrong\u003eECE HOMOL.\u003c\/strong\u003e marking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Dark\" aluminum with carbon end cap\u003c\/strong\u003e – dark painted body and visible carbon fiber end cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel mid-pipe already included\u003c\/strong\u003e – connects to the original headers without additional purchases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaxi Race-Tech enlarged section\u003c\/strong\u003e – the muffler profile measures 112 × 140 mm, the largest in the Race-Tech family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003edb-killer included\u003c\/strong\u003e – supplied and removable for closed circuit use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual application\u003c\/strong\u003e – same code for F 750 GS and F 850 GS, which Arrow identifies with the same vehicle type MG85.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eTechnical features\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eArrow Special Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eArticle code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e72639AKN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eEAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e8019799122468\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOfficial name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMaxi Race-Tech \"Dark\" aluminum muffler with carbon end cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eLine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMaxi Race-Tech\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eType of spare part\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSlip-on exhaust muffler with mid-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBody material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\"Dark\" aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRear end cap material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCarbon fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMuffler internal material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMid-pipe material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eStainless steel, included in the supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrame mounting type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWelded attachment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBody length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eInlet diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutlet diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMuffler section\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e112 × 140 mm (Maxi Race-Tech profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e3.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eLambda sensor provision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCO sensor provision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003edb-killer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePresent, included in the supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eHomologation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eECE HOMOL. – Reg. R92.01 (ECE-ONU), valid for the indicated vehicle types\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePosition on vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eRear, single outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity provided per vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#fff3cd;border-left:4px solid #ffc107;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\u003cstrong\u003e⚠️ Important notes:\u003c\/strong\u003e\u003cbr\u003e• Arrow homologation is only valid for the vehicle types indicated on the official diagrams (MG85) and for their subsequent updates.\u003cbr\u003e• For road use, the db-killer must be kept in place.\u003cbr\u003e• \u003cstrong\u003eThe other two Arrow components for this motorcycle – the 71776MI central mid-pipe and the 71777MI headers – are both marked \"Racing\": they are not approved and are intended for closed circuit use only.\u003c\/strong\u003e Installing them voids the road compliance of the system, which remains guaranteed with the 72639AKN alone.\u003cbr\u003e• For this application, Arrow does not publish power and torque increase values.\u003cbr\u003e• Installation recommended by qualified personnel.\u003c\/div\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eVehicle compatibility\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003ctr style=\"background:#e63946;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eArrow Vehicle Type\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBMW F 750 GS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMG85 – Euro 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBMW F 850 GS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMG85 – Euro 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:14px;color:#555;\"\u003eThe list is taken from the official Arrow catalog (B2B area). If you have any doubts, send us your bike's VIN and we will verify the correct code.\u003c\/p\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eThe complete Arrow system\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;\"\u003eOn the same model pages, Arrow provides two other components that mount upstream of this muffler: the \u003cstrong\u003e71776MI central mid-pipe\u003c\/strong\u003e, in stainless steel, with 50 mm inlet and outlet and a weight of 0.5 kg, and the \u003cstrong\u003e71777MI racing headers\u003c\/strong\u003e, also in stainless steel, 50 mm outlet, 1.82 kg, with lambda sensor provision. \u003cstrong\u003eBoth, however, are marked \"Racing\" and are not approved: they are intended for closed circuit use only.\u003c\/strong\u003e The muffler, which is the only one of the three to bear the ECE marking, mounts alone to the stock system and remains perfectly road legal.\u003c\/p\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eWho it's perfect for\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;\"\u003eFor those who have a BMW F 750 GS or F 850 GS of the latest Euro 5 series and want to lighten the rear of the motorcycle with an all-black muffler, without sacrificing road use or inspection. It is the choice of those who prefer a clean and reversible intervention: remove the stock muffler, install the 72639AKN with its mid-pipe, and the system remains otherwise original.\u003c\/p\u003e\n\u003cdiv style=\"background:#f0f7f0;border-left:4px solid #28a745;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\u003cstrong\u003e🛡️ Warranty and quality – Moon Bike S.r.l.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOriginal Arrow Special Parts\u003c\/strong\u003e replacement, new and never mounted. Moon Bike S.r.l. is based in Cercola (NA) and ships from Italy with invoice and manufacturer's warranty.\u003c\/div\u003e\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs the Arrow 72639AKN approved?\u003c\/strong\u003e\u003cbr\u003eYes. On the official Arrow diagrams for the F 750 GS and F 850 GS 2021-2024, the 72639AKN appears with the ECE HOMOL. marking, which corresponds to regulation R92.01 on noise and power control. The homologation is valid for the vehicle types indicated by Arrow, i.e., MG85, and for road use, the db-killer must be kept in place.\u003c\/p\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eWhich BMWs does it fit?\u003c\/strong\u003e\u003cbr\u003eOn the BMW F 750 GS and BMW F 850 GS of the 2021-2024 series, both Euro 5. Arrow treats them as a single application because they share the same vehicle type, MG85, and in fact, the same code appears on both model pages of the official catalog. For F 800 GS and F 900 GS from 2024 onwards, Arrow provides different mufflers.\u003c\/p\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eDo I also need to change the headers or the mid-pipe?\u003c\/strong\u003e\u003cbr\u003eNo, and it's worth knowing: the necessary stainless steel mid-pipe is already included in the package, so the muffler mounts to the stock system without additional purchases. The 71776MI central mid-pipe and the 71777MI headers are optional and, unlike the muffler, are not approved: installing them makes the system usable only on a closed circuit.\u003c\/p\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eWhat is the \"Dark\" finish and how does it differ from the 72639AK?\u003c\/strong\u003e\u003cbr\u003e\"Dark\" refers to the dark painted aluminum body that Arrow uses on this version. The rear end cap remains carbon fiber and the internal parts of the muffler stainless steel: compared to the 72639AK in natural aluminum, the external appearance changes, not the structure. The measurements are identical, while the declared weight is slightly different.\u003c\/p\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eWhat are its measurements and weight?\u003c\/strong\u003e\u003cbr\u003eArrow declares a body length of 400 mm, with both inlet and outlet diameters of 50 mm, and a weight of 3.5 kg. The muffler profile is the Maxi Race-Tech, the largest in the family, with a section of 112 × 140 mm. Frame mounting is done with a welded attachment, and there is no provision for either a lambda sensor or a CO sensor.\u003c\/p\u003e\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs the db-killer included and can it be removed?\u003c\/strong\u003e\u003cbr\u003eYes, the db-killer is present and comes mounted in the muffler. It can be removed for closed circuit use, resulting in a fuller sound, but in that case, the muffler no longer complies with homologation: for road use and inspection, it must be reinstalled.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Arrow","offers":[{"title":"Default Title","offer_id":57068774130012,"sku":"72639AKN","price":506.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3660\/0668\/files\/arrow-72639akn-terminale-maxi-race-tech-alluminio-dark.png?v=1788290095","url":"https:\/\/www.moonbikesrl.it\/en-row\/products\/arrow-72639akn-terminale-maxi-race-tech-dark-bmw-f-750-850-gs","provider":"Moon Bike S.r.l.","version":"1.0","type":"link"}