{"product_id":"round-outer-for-110-bcd-4b-shimano-asymmetric-2x12speed","title":"Round Outer 2X for 110 BCD 4b Shimano Asymmetric 2x12sp.","description":"\u003cp\u003e\u003cstrong\u003eThe original AERO design ALUGEAR chainring 2-speed\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eTECHNICAL SPECIFICATIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended to use:\u003c\/strong\u003e 2×12 speed for Road and Time Trial bike\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeights:\u003c\/strong\u003e 50 teeth – 112g; 52 teeth – 127g; 54 teeth – 143g\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting position:\u003c\/strong\u003e outside of the crank\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt circle diameter:\u003c\/strong\u003e 110 mm Shimano Asymmetric\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttachment:\u003c\/strong\u003e 4-arm spider\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum 7075-T6\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade:\u003c\/strong\u003e CNC milling\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface coating:\u003c\/strong\u003e Anodizing\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\nDelivery includes: 1 x outer chainring\n(without Inner chainring, Aero cover, without nuts and bolts)\n\n\u003ch4\u003e\u003cstrong\u003eCOMPATIBILITY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\nFor Shimano 2×12 speed cranks with 110 mm Asymmetrical bolt circle diameter (4-arms): 105 FC-R7100; Ultegra FC-R8100 (P); Dura-Ace FC-R9200 (P)\n\u003c\/li\u003e\n\u003cli\u003e\nThe chainrings are compatible with 12-speed cranks FC-R8100-P; FC-R9200-P with Original PowerMeter\n\u003c\/li\u003e\n\u003cli\u003e\nCompatible with \u003ca href=\"https:\/\/alugear.com\/chainrings-2x\/374-17692-round-inner-for-110-bcd-4b-shimano-asymmetric-2x12speed.html#\/11-color-black\/34-size-40t\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e\u003cspan\u003eALUGEAR Inner Сhainring\u003c\/span\u003e\u003c\/a\u003e only\n\u003c\/li\u003e\n\u003cli\u003e\nChainrings you may use the following chains: 11sp, 12sp Shimano; 12sp KMC chains\n\u003c\/li\u003e\n\u003cli\u003e\nShifting: 2x12 speed \u003cstrong\u003e (only for use with double system and front derailleur)  \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eINFORMATION\u003c\/strong\u003e\u003c\/h4\u003e\nALUGEAR chainrings are some of the lightest chainrings on the market. Using our experience and vigorous testing, we tweaked the arm design and strategically machined the chainrings so that only minimal sacrifices were made in impact strength in exchange for large gains in weight reduction\nWith special tooth profiles, mount and climbing aids allow chainrings a particularly soft and fast switching. So with them a shift under load easily. The chainrings have been specially tuned by climbing aids and can only achieve their superior shifting performance in the combinations provided by Alugear\nThe chainrings are CNC machined from 7075 T6 aluminum and hard coat industrially anodized to provide protection from mechanical impacts, a good look, and an excellent tactile feel to each of the chainrings that lasts a long time\u003cbr\u003eA unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations drive trains\nThe tooth profile is specially designed for use with Road chains\n\u003cspan\u003eALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design and low weight\u003c\/span\u003e\n\n\u003ch4\u003e\u003cstrong\u003eRECOMMENDATIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\nFor the best appearance you may use ALUGEAR AERO COVER (for \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/chainrings-2x\/402-18555-cover-r7100-for-alugear-chainrings-12-sp-105-cranks.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e105 R7100\u003c\/a\u003e\u003c\/span\u003e; \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/chainrings-2x\/369-17543-cover-r8100-for-alugear-chainrings-12-sp-ultegra-cranks.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eUltegra R8100\u003c\/a\u003e\u003c\/span\u003e, \u003ca href=\"https:\/\/alugear.com\/home\/393-18429-cover-pm-r8100-p-for-alugear-chainrings-12-sp-ultegra-with-power-meter.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e\u003cspan\u003eR8100-P\u003c\/span\u003e\u003c\/a\u003e; \u003ca href=\"https:\/\/alugear.com\/home\/370-17551-cover-r9200-for-alugear-chainrings-12-sp-dura-ace-cranks.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e\u003cspan\u003eDura-Ace R9200\u003c\/span\u003e\u003c\/a\u003e, \u003ca href=\"https:\/\/alugear.com\/home\/398-18461-cover-pm-r9200-p-for-alugear-chainrings-12-sp-dura-ace-with-power-meter.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e\u003cspan\u003eR9200-P\u003c\/span\u003e\u003c\/a\u003e cranks)\n\u003c\/li\u003e\n\u003cli\u003e\nAlso you may use\u003ca href=\"https:\/\/alugear.com\/home\/330-nuts-7mm-and-bolts-65mm-4-pieces.html#\/10-color-red\" rel=\"noreferrer noopener\" target=\"_blank\"\u003e \u003cspan\u003eALUGEAR chainring bolts and nuts\u003c\/span\u003e\u003c\/a\u003e for mounting\n\u003c\/li\u003e\n\u003cli\u003e\nIt is also a good idea to use a new chain with your new ALUGEAR chainrings\n\u003c\/li\u003e\n\u003cli\u003e\nOptimum chainring combinations: 50-34; 52-36; 54-40\n\u003c\/li\u003e\n\u003cli\u003e\nWe recommend using the optimal ALUGEAR 2-speed chainring combinations\n\u003c\/li\u003e\n\u003cli\u003e\nThe correct operation of the double set is guaranteed only when using ALUGEAR outer and inner chainrings together\n\u003c\/li\u003e\n\u003cli\u003e\nPlease remember that when replacing chainrings (especially when altering the size of the outer chainring), it is necessary to adjust the front derailleur\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\nDelivery includes: 1 x outer chainring (without Inner chainring, Aero cover, without nuts and bolts!)","brand":"alugear","offers":[{"title":"Black \/ 48T","offer_id":52808244363602,"sku":"5908374294429","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ 50T","offer_id":52808245346642,"sku":"5908374273844","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ 50T","offer_id":52808245379410,"sku":"5908374273851","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ 50T","offer_id":52808245412178,"sku":"5908374273868","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ 50T","offer_id":52808245444946,"sku":"5908374273875","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ 50T","offer_id":52808245477714,"sku":"5908374273882","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Green \/ 50T","offer_id":52808245510482,"sku":"5908374273899","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Gold \/ 50T","offer_id":52808245543250,"sku":"5908374273905","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Purple \/ 50T","offer_id":52808245576018,"sku":"5908374273912","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ 52T","offer_id":52808245608786,"sku":"5908374273929","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ 52T","offer_id":52808245641554,"sku":"5908374273936","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ 52T","offer_id":52808245674322,"sku":"5908374273943","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ 52T","offer_id":52808245707090,"sku":"5908374273950","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ 52T","offer_id":52808245739858,"sku":"5908374273967","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Green \/ 52T","offer_id":52808245772626,"sku":"5908374273974","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Gold \/ 52T","offer_id":52808245805394,"sku":"5908374273981","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Purple \/ 52T","offer_id":52808245838162,"sku":"5908374273998","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ 54T","offer_id":52808245870930,"sku":"5908374274025","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ 54T","offer_id":52808245903698,"sku":"5908374274001","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ 54T","offer_id":52808245936466,"sku":"5908374274049","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ 54T","offer_id":52808245969234,"sku":"5908374274032","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Green \/ 54T","offer_id":52808246002002,"sku":"5908374274056","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ 54T","offer_id":52808246034770,"sku":"5908374274018","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Gold \/ 54T","offer_id":52808246067538,"sku":"5908374274063","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Purple \/ 54T","offer_id":52808246100306,"sku":"5908374274070","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ 48T","offer_id":52808246133074,"sku":"5908374294436","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ 48T","offer_id":52808246165842,"sku":"5908374294443","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ 48T","offer_id":52808246198610,"sku":"5908374294450","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ 48T","offer_id":52808246231378,"sku":"5908374294467","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Green \/ 48T","offer_id":52808246264146,"sku":"5908374294474","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Gold \/ 48T","offer_id":52808246296914,"sku":"5908374294481","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Purple \/ 48T","offer_id":52808246329682,"sku":"5908374294498","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Steel \/ 48T","offer_id":53082251985234,"sku":"5908374294504","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Mocha \/ 48T","offer_id":53082252018002,"sku":"5908374294511","price":115.0,"currency_code":"EUR","in_stock":true},{"title":"Steel \/ 50T","offer_id":53082252050770,"sku":"5908374296454","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Mocha \/ 50T","offer_id":53082252083538,"sku":"5908374296461","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Steel \/ 52T","offer_id":53082252116306,"sku":"5908374296478","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Mocha \/ 52T","offer_id":53082252149074,"sku":"5908374296485","price":119.0,"currency_code":"EUR","in_stock":true},{"title":"Steel \/ 54T","offer_id":53082252181842,"sku":"5908374296492","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Mocha \/ 54T","offer_id":53082252214610,"sku":"5908374296508","price":126.0,"currency_code":"EUR","in_stock":true},{"title":"Black \/ 56T","offer_id":53082252247378,"sku":"5908374294528","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Silver \/ 56T","offer_id":53082252280146,"sku":"5908374294535","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Red \/ 56T","offer_id":53082252312914,"sku":"5908374294542","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Blue \/ 56T","offer_id":53082252345682,"sku":"5908374294559","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Orange \/ 56T","offer_id":53082252378450,"sku":"5908374294566","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Green \/ 56T","offer_id":53082252411218,"sku":"5908374294573","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Gold \/ 56T","offer_id":53082252443986,"sku":"5908374294580","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Purple \/ 56T","offer_id":53082252476754,"sku":"5908374294597","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Steel \/ 56T","offer_id":53082252509522,"sku":"5908374294603","price":135.0,"currency_code":"EUR","in_stock":true},{"title":"Mocha \/ 56T","offer_id":53082252542290,"sku":"5908374294610","price":135.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/2605\/1666\/files\/12Sp110BCD56touter2x.jpg?v=1781684846","url":"https:\/\/alugear.com\/en-eu\/products\/round-outer-for-110-bcd-4b-shimano-asymmetric-2x12speed","provider":"alugear","version":"1.0","type":"link"}