{"product_id":"round-1-speed-for-12sp-110-bcd-4b-shimano-asymmetric-road","title":"Round 1X for 12sp. 110 BCD 4b Shimano Asymmetric","description":"\u003cstrong\u003eT\u003c\/strong\u003e\u003cstrong\u003ehe narrow-wide chainring is for use as only single\u003c\/strong\u003e\n\n\u003ch4\u003e\u003cstrong\u003eTECHNICAL SPECIFICATIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOffset:\u003c\/strong\u003e 38T-52T 3,0mm; 54T 2,0mm; 56T 1,0mm; 58T 0,0mm; 60T -1,0mm; 62T -1,5mm\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 38T- 161,3mm; 40T- 171,0mm; 42T- 179,0mm; 44T- 187,0mm; 46T- 195,5mm; 48T- 202,4mm; 50T- 210,4mm; 52T- 219,0mm; 54T- 227mm; 56T- 235mm; 58T- 243mm; 60T- 251mm; 62T- 259mm\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology: \u003c\/strong\u003eNarrow Wide chainring teeth (1-speed)\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003eAluminum 7075-T6\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade: \u003c\/strong\u003eCNC milling\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface coating: \u003c\/strong\u003eAnodizing\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eCOMPATIBILITY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\nFor Shimano cranks with 110 mm Asymmetrical bolt circle diameter (4-arms): Dura-Ace R9200; Ultegra R8100; 105 R7100\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eChainrings you may use the following chains: 12sp Shimano HG+; 12sp SRAM Flattop; KMC chains\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\nShifting: 1x12\n\u003c\/li\u003e\n\u003cli\u003e\nNOTE: the chainring 1X (1-speed, single) is not compatible with 2X (2-speed, double setups)\n\u003c\/li\u003e\n\u003cli\u003e\nOnly for use with a single system without a front derailleur\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\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, such as 12-speed drives\nALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design and low weight\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\/home\/369-17543-cover-aero-for-alugear-chainrings.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eUltegra R8100\u003c\/a\u003e\u003c\/span\u003e, \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/home\/393-18429-cover-aero-for-alugear-chainrings.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eR8100-P\u003c\/a\u003e\u003c\/span\u003e or \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/home\/370-17551-cover-aero-for-alugear-chainrings.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eDura-Ace R9200\u003c\/a\u003e\u003c\/span\u003e, \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/home\/398-18461-cover-aero-for-alugear-chainrings.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eR9200-P\u003c\/a\u003e\u003c\/span\u003e cranks)\n\u003c\/li\u003e\n\u003cli\u003e\nPlease use only original ALUGEAR Bolts during installation. Using other bolts may cause damage to the СOVER \n\u003c\/li\u003e\n\u003cli\u003e\nAlso, you may use ALUGEAR chainring \u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/home\/330-17559-nuts-7mm-and-bolts-65mm-4-pieces.html#\/11-color-black\" rel=\"noreferrer noopener\" target=\"_blank\"\u003ebolts and nuts\u003c\/a\u003e\u003c\/span\u003e for mounting: 7mm nuts and 6,5mm bolts are required\n\u003c\/li\u003e\n\u003cli\u003e\nWe recommend use of a clutch system rear derailleur for the best chain security\n\u003c\/li\u003e\n\u003cli\u003e\nIt is also a good idea to use a new chain with your new ALUGEAR chainring\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eINSTALLATION INSTRUCTIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/img\/cms\/Alugear%20Chainring%20Instalation%20BCD%20Round.png\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eThe chainring installation scheme\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/img\/cms\/Mounting%20scheme%20Shimano%201x%20+%20Cover.jpg\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eThe chainring installation scheme with Cover\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/alugear.com\/img\/cms\/Mounting%20scheme%20Shimano%201x%20+%20Nuts.jpg\" rel=\"noreferrer noopener\" target=\"_blank\"\u003eThe chainring installation scheme with Nuts and Bolts\u003c\/a\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\nDelivery includes: 1x chainring","brand":"alugear","offers":[{"title":"Black \/ 38T","offer_id":52796975546706,"sku":"5908374260394","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Silver \/ 38T","offer_id":52796975645010,"sku":"5908374260400","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Red \/ 38T","offer_id":52796975677778,"sku":"5908374260417","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Blue \/ 38T","offer_id":52796975710546,"sku":"5908374260424","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Orange \/ 38T","offer_id":52796975743314,"sku":"5908374260431","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Green \/ 38T","offer_id":52796975776082,"sku":"5908374260448","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Gold \/ 38T","offer_id":52796975808850,"sku":"5908374260455","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Purple \/ 38T","offer_id":52796975841618,"sku":"5908374260462","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Black \/ 40T","offer_id":52796975874386,"sku":"5908374260479","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Silver \/ 40T","offer_id":52796975907154,"sku":"5908374260486","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Red \/ 40T","offer_id":52796975939922,"sku":"5908374260493","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Blue \/ 40T","offer_id":52796975972690,"sku":"5908374260509","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Orange \/ 40T","offer_id":52796976005458,"sku":"5908374260516","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Green \/ 40T","offer_id":52796976038226,"sku":"5908374260523","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Gold \/ 40T","offer_id":52796976070994,"sku":"5908374260530","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Purple \/ 40T","offer_id":52796976103762,"sku":"5908374260547","price":383.66,"currency_code":"PLN","in_stock":true},{"title":"Black \/ 42T","offer_id":52796976136530,"sku":"5908374260554","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Silver \/ 42T","offer_id":52796976169298,"sku":"5908374260561","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Red \/ 42T","offer_id":52796976202066,"sku":"5908374260578","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Blue \/ 42T","offer_id":52796976234834,"sku":"5908374260585","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Orange \/ 42T","offer_id":52796976267602,"sku":"5908374260592","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Green \/ 42T","offer_id":52796976300370,"sku":"5908374260608","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Gold \/ 42T","offer_id":52796976333138,"sku":"5908374260615","price":409.53,"currency_code":"PLN","in_stock":true},{"title":"Purple \/ 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