{"title":"Restoring BMW 2-Valve Boxer Motorcycles","description":"\u003cp\u003eBMW 2-Valve Boxer Motorcycle Restoration - A professional motorcycle restoration is far more than a normal workshop job. Especially with classic BMW 2-valve Boxer models, the combination of experience, technical understanding, and attention to detail determines the outcome. At Sport-Evolution, we don't just superficially restore BMW motorcycles; instead, we view each vehicle as a complete project – from the frame, engine, and transmission to the chassis, electrics, paintwork, and final assembly.\u003c\/p\u003e\n\n\u003cp\u003eWhether it's a BMW R80, BMW R90S, BMW R100, or another classic Boxer model: every BMW restoration begins with a precise inventory. We check which components need to be preserved, refurbished, or replaced. The goal is to build a motorcycle that is technically reliable, visually high-quality, and characteristically coherent.\u003c\/p\u003e\n\n\u003cp\u003eUpon request, we can restore your motorcycle true to original or combine classic aesthetics with modern technology. Engines can be completely dismantled, re-bearinged, and overhauled. Transmissions, carburetors, chassis, and braking systems are inspected and expertly repaired if necessary. Our range of services also includes powder coatings, original design paintwork, new spoked wheels, refurbished wiring harnesses, and individual detailed work.\u003c\/p\u003e\n\n\u003cp\u003eThanks to our high vertical integration, we can carry out many work steps directly in our manufactory in Neuwied. This ensures short distances, smooth coordination, and a result that meets our standards both technically and visually.\u003c\/p\u003e\n\n\u003cp\u003eIf you want to have your BMW 2-valve Boxer restored, Sport-Evolution is your contact for high-quality motorcycle restorations with substance. Whether it's a partial restoration, technical overhaul, or complete rebuild to the condition of a new motorcycle – we accompany your project with experience, passion, and craftsmanship.\u003c\/p\u003e","products":[{"product_id":"bmw-r90-s-komplett-restauration","title":"BMW R90S Restoration - Professional restoration to the highest standard","description":"\u003cdiv\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe BMW R90S is one of the most significant motorcycles in BMW history. With its distinctive bikini fairing, sporty character, and pioneering technology, it set new standards in the 1970s and became one of the most sought-after BMW motorcycle legends of all time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA professional BMW R90S restoration means far more than just replacing wear parts or applying a new coat of paint. The goal is to preserve the fascination and character of this extraordinary motorcycle for future generations while ensuring technical perfection at the highest level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBMW R90S restoration with attention to detail\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt Sport-Evolution, every BMW R90S is completely disassembled and analyzed down to the very last screw. All components are cleaned, inspected, measured, and, depending on their condition, refurbished or replaced. Thanks to our many years of experience with classic BMW twin-valve models, we know the unique features and weak points of these motorcycles inside out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe engine, gearbox, chassis, braking system, electrical system, and attachments are overhauled to the highest quality standards. Our goal is not only to restore the original condition but to achieve the technical quality of a brand-new vehicle.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eEngine building and technology\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe heart of every BMW R90S is its legendary boxer engine. As part of the BMW R90S restoration, the engine is completely disassembled and rebuilt. All components are inspected and overhauled. Wear parts are systematically replaced.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe work includes, among other things:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eCompletely disassembling and cleaning the engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring and inspecting the crank drive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely overhauling the cylinder heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnleaded fuel conversion of the cylinder heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing valve guides, valves, and seat rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspecting and overhauling the cylinders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing all bearings, seals, and wear parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely overhauling and tuning the carburetors\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe gearbox is also completely disassembled, measured, and rebuilt. All bearings, seals, and wear components are replaced to ensure reliable operation for many years to come.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eChassis and driving dynamics\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA high-quality BMW motorcycle restoration does not end with the engine. The chassis and braking system play a crucial role in safety and riding pleasure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs part of the restoration, the forks, shock absorbers, swingarm bearings, steering head bearings, and wheel bearings are checked and replaced if necessary. Upon request, we can integrate subtle technical optimizations that improve handling without altering the classic character of the BMW R90S.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTrue-to-original look\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe distinctive paintwork makes the BMW R90S a true icon. That is why special emphasis is placed on a true-to-original restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe frame, as well as all chassis and metal parts, are recoated. The paintwork is applied with the utmost precision in the original BMW R90S design. Trim pieces, emblems, and attachments are refurbished or replaced with high-quality original parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe result is a BMW R90S that visually matches its historical predecessor while meeting the highest technical standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy have your BMW R90S restored at Sport-Evolution?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe restoration of classic BMW motorcycles requires extensive specialist knowledge, special tools, and decades of experience. Sport-Evolution is one of the leading specialists for BMW twin-valve models in Germany.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOur in-house engine department, chassis department, welding shop, and modern workshop equipment enable us to carry out almost all work in-house. This allows us to ensure consistently high quality throughout the entire restoration process.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAn overview of the key tasks\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eComplete BMW R90S restoration from the ground up\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComplete disassembly of the vehicle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngine completely rebuilt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCylinder head overhaul including unleaded conversion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGearbox completely rebuilt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarburetors overhauled and tuned\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChassis completely overhauled\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eElectrical system checked and repaired\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll chassis and metal parts powder-coated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePaintwork in the original BMW R90S design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAssembly with new bearings, seals, and wear parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFinal inspection and test ride\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eClassic BMW motorcycle restoration by specialists\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether it is a BMW R90S, BMW R100RS, BMW R100S, BMW R80, or other BMW twin-valve models – we restore classic BMW motorcycles to the highest quality standards and with a great passion for every detail.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you would like to have your BMW R90S restored, we would be happy to advise you personally and work with you to create a customized restoration concept for your motorcycle.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805873484156,"sku":"BMW R90S EIKAUSH","price":22000.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/k-SEM_8346_2528.jpg?v=1781354400"},{"product_id":"bmw-r80-komplett-restauriert","title":"Restore your BMW R80 - Rebuild the classic, technically and visually","description":"\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eBMW R 80 complete restoration\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003ca href=\"https:\/\/youtu.be\/YdN5W8RiM4c\" target=\"_blank\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cimg alt=\"SE Motorcycles you tube\" src=\"https:\/\/www.sport-evolution.sbs\/images\/you_tube.jpg\" style=\"border: 0px currentColor; width: 60px; height: 60px; vertical-align: middle; box-sizing: border-box;\"\/\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/youtu.be\/YdN5W8RiM4c\" target=\"_blank\"\u003e\u003cstrong\u003earound view\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA comprehensive BMW R80 restoration is not just about fixing individual defects. The goal is a holistic overhaul of the motorcycle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEvery vehicle is first completely disassembled. The frame, engine, transmission, chassis, electrical system, and attachments are thoroughly inspected and evaluated. Based on this, an individual restoration concept is created, tailored to the condition of the vehicle and the owner's wishes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis allows wear, signs of aging, and previous repairs to be reliably identified and professionally rectified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOverhaul of engine and transmission\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe air-cooled two-valve boxer engine is known for its longevity. Nevertheless, decades and often well over 100,000 kilometers of riding leave their mark.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs part of the restoration, the engine is completely disassembled and checked. Wear parts are replaced, sealing surfaces are machined, and all components are carefully measured. Upon request, the cylinder heads can be converted for unleaded fuel and technically brought up to date.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe transmission is also completely overhauled. Bearings, seals, and worn components are replaced to ensure long-term reliable operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eChassis, brakes, and electrical system\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIn addition to the engine and transmission, the chassis and braking system play a decisive role in safety and ride comfort.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe fork, shock absorbers, steering head bearings, swingarm bearings, and brake components are checked and, if necessary, overhauled or replaced. The vehicle's electrical system is also checked so that the motorcycle functions reliably in everyday use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThanks to the technical overhaul, a restored BMW R80 often rides much more precisely and safely than many vehicles that have only been maintained for decades.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRefurbishment of frame and surfaces\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAn important part of every BMW motorcycle restoration is the visual refurbishment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe frame, swingarm, and other metal parts are recoated. Worn or damaged attachments are refurbished or replaced. The paintwork is carried out according to the customer's wishes, either true to the original or as a high-quality reinterpretation of the classic BMW design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis creates a motorcycle that retains its authentic character while appearing in new splendor.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eEverything from a single source\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRestoring a BMW R80 requires expertise in a wide variety of areas. Thanks to our high level of vertical integration, we can carry out almost all work in our own workshop.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEngine construction, cylinder head machining, chassis technology, welding, surface treatment, and final assembly all take place under one roof. This ensures consistently high quality throughout the entire restoration process.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eServices included in a BMW R80 restoration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eComplete disassembly of the vehicle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTechnical evaluation of all assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngine overhaul including cylinder head refurbishment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnleaded fuel conversion for cylinder heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComplete transmission overhaul\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarburetor overhaul and tuning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOverhaul of chassis and braking system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspection and repair of the electrical system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRenewal of bearings, seals, and wear parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowder coating of frame and chassis parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrue-to-original or custom paintwork\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFinal assembly with quality control and test ride\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSpecialist for BMW two-valve engines\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor many years, Sport-Evolution has been involved in the restoration, overhaul, and optimization of classic BMW boxer motorcycles. Whether it's a BMW R80, R100, R100GS, R100RS, or other two-valve models - every project is individually planned and implemented with the utmost care.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you would like to have your BMW R80 restored, we would be happy to advise you personally and work with you to develop a restoration concept that suits your motorcycle and your vision.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805962121596,"sku":"BMW R80RT ANETZKYJ","price":22500.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/k-397A6240_10518.jpg?v=1781345894"},{"product_id":"bmw-r90-s-komplett-restauration-1","title":"BMW R90S Restoration - Professional restoration to the highest standard","description":"\u003cdiv\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe BMW R90S is one of the most significant motorcycles in BMW history. With its distinctive bikini fairing, sporty character, and pioneering technology, it set new standards in the 1970s and became one of the most sought-after BMW motorcycle legends of all time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA professional BMW R90S restoration means far more than just replacing wear parts or applying a new coat of paint. The goal is to preserve the fascination and character of this extraordinary motorcycle for future generations while ensuring technical perfection at the highest level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBMW R90S Restoration with Attention to Detail\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt Sport-Evolution, every BMW R90S is completely disassembled and analyzed down to the very last screw. All components are cleaned, inspected, measured, and, depending on their condition, refurbished or replaced. Thanks to our many years of experience with classic BMW twin-valve models, we know the unique characteristics and weak points of these motorcycles inside out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe engine, gearbox, chassis, braking system, electrics, and attachments are overhauled to the highest quality standards. Our goal is not only to restore the original condition but to achieve the technical quality of a brand-new vehicle.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eEngine Building and Technology\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe heart of every BMW R90S is its legendary boxer engine. As part of the BMW R90S restoration, the engine is completely disassembled and rebuilt. All components are inspected and overhauled. Wear parts are systematically replaced.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe work includes, among other things:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eCompletely disassembling and cleaning the engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring and inspecting the crank drive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely overhauling the cylinder heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnleaded fuel conversion of the cylinder heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing valve guides, valves, and seat rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInspecting and overhauling the cylinders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing all bearings, seals, and wear parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely overhauling and tuning the carburetors\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe gearbox is also completely disassembled, measured, and rebuilt. All bearings, seals, and wear components are replaced to ensure reliable operation for many years to come.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eChassis and Driving Dynamics\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA high-quality BMW motorcycle restoration does not end with the engine. The chassis and braking system play a crucial role in safety and riding pleasure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs part of the restoration, the forks, shock absorbers, swingarm bearings, steering head bearings, and wheel bearings are checked and replaced if necessary. Upon request, we can integrate subtle technical optimizations that improve handling without altering the classic character of the BMW R90S.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTrue-to-Original Look\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe distinctive paintwork makes the BMW R90S a true icon. That is why special emphasis is placed on a true-to-original restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe frame as well as all chassis and metal parts are recoated. The paintwork is applied with the highest precision in the original BMW R90S design. Trim pieces, emblems, and attachments are refurbished or replaced with high-quality original parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe result is a BMW R90S that visually matches its historical predecessor while meeting the highest technical standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Have Your BMW R90S Restored at Sport-Evolution?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe restoration of classic BMW motorcycles requires extensive specialist knowledge, special tools, and decades of experience. Sport-Evolution is one of the leading specialists for BMW twin-valve models in Germany.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOur in-house engine department, chassis department, welding shop, and modern workshop equipment enable us to carry out almost all work in-house. This allows us to ensure consistently high quality throughout the entire restoration process.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOverview of the Most Important Work\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eComplete BMW R90S restoration from the ground up\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComplete disassembly of the vehicle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngine completely rebuilt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCylinder head overhaul including unleaded conversion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGearbox completely rebuilt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarburetors overhauled and tuned\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChassis completely overhauled\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eElectrics checked and repaired\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll chassis and metal parts powder-coated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePaintwork in the original BMW R90S design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAssembly with new bearings, seals, and wear parts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFinal inspection and test ride\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eBMW Classic Motorcycle Restoration by Specialists\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether it is a BMW R90S, BMW R100RS, BMW R100S, BMW R80, or other BMW twin-valve models – we restore classic BMW motorcycles to the highest quality standards and with a great passion for every detail.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you would like to have your BMW R90S restored, we would be happy to advise you personally and work with you to create a customized restoration concept for your motorcycle.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cspan style=\"font-family: Times New Roman; font-size: medium;\"\u003e \u003ca href=\"https:\/\/youtu.be\/17LhjwQs5w0\"\u003e\u003cimg alt=\"SE Motorcycles you tube\" src=\"https:\/\/www.sport-evolution.sbs\/images\/you_tube.jpg\" style=\"border: 0px currentColor; width: 60px; height: 60px; vertical-align: middle; box-sizing: border-box;\"\/\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/youtu.be\/17LhjwQs5w0\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif;\"\u003eround view\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805977457020,"sku":"BMW R90S RIEGK","price":22000.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/k-397A7598_11629.jpg?v=1781344477"},{"product_id":"bmw-r90s-restauration-wiederaufbau-auf-neufahrzeugniveau","title":"BMW R90S Restoration - Rebuild to New Vehicle Standard","description":"\u003cdiv\u003e\n\u003ch2\u003e\n\u003cspan\u003eBMW R90S Restoration - Rebuilding to New Vehicle Standard\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe BMW R90S restoration is one of the most demanding tasks for a classic BMW motorcycle. The goal of this project was to completely rebuild the legendary R90S to its original condition and bring it to a new vehicle standard, both technically and visually. The focus was not only on perfect functionality but also on preserving the authentic character of this special BMW classic.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe engine, transmission, and carburetors were completely disassembled, inspected, and professionally rebuilt. The engine also received an unleaded fuel conversion so that the classic BMW boxer can be operated with today's fuels without any issues. All work is carried out with the aim of combining reliability, originality, and high-quality craftsmanship.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe chassis was also consistently refurbished. All chassis and metal components were professionally prepared and powder-coated. The tank, fairing, and other painted parts received a complete new paint job in the original BMW R90S design. The decisive factor here is the faithful implementation down to the last detail.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHighlights of the restoration\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCompletely rebuilt BMW R90S engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnleaded fuel conversion for modern fuels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTransmission completely overhauled and rebuilt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarburetors restored and professionally tuned\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll chassis and metal parts powder-coated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNew paint job in the original BMW R90S design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFaithful restoration down to the last detail\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTechnical and visual condition at new vehicle level\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eA high-quality BMW R90S restoration requires experience, specialized workshop equipment, and comprehensive knowledge of classic BMW 2-valve engines. Sport-Evolution has decades of experience with BMW boxer models and a high level of vertical integration, allowing a large portion of the work to be carried out directly in our workshop.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe apply this same expertise to other classic models such as the R65, R80, and R100 – from technical overhauls to complete rebuilds.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote: The stated price refers exclusively to the restoration work. The base vehicle is not included in the price.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/17LhjwQs5w0\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/youtu.be\/17LhjwQs5w0\"\u003e\u003cspan style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan style=\"font-size: 10pt\"\u003e\u003cstrong\u003eround view\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805984076156,"sku":"BMW R90S ERBEZ","price":22000.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/k-397A8933_12233.jpg?v=1781343605"}],"url":"https:\/\/sport-evolution.sbs\/en\/collections\/bmw-2-valve-boxer-motorcycle-restoration.oembed","provider":"Sport Evolution","version":"1.0","type":"link"}