{"product_id":"rund-1speed-til-12s-shimano","title":"Alugear \"Round\" - 1-speed to 12sp 110 BCD 4b Shimano Asymmetric Road\/Gravel","description":"\u003ch3 data-start=\"59\" data-end=\"93\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n\u003cp data-start=\"94\" data-end=\"103\"\u003eOffset:\u003c\/p\u003e\n\u003cp data-start=\"106\" data-end=\"123\"\u003e38T–52T: 3.0 mm\u003cbr\u003e54T: 2.0 mm\u003cbr\u003e56T: 1.0 mm\u003cbr\u003e58T: 0.0 mm\u003cbr\u003e60T: -1.0 mm\u003cbr\u003e62T: -1.5 mm\u003c\/p\u003e\n\u003cp data-start=\"207\" data-end=\"433\"\u003eDiameter:\u003cbr data-start=\"216\" data-end=\"219\"\u003e38T – 161.3 mm • 40T – 171.0 mm • 42T – 179.0 mm • 44T – 187.0 mm • 46T – 195.5 mm •\u003cbr data-start=\"303\" data-end=\"306\"\u003e48T – 202.4 mm • 50T – 210.4 mm • 52T – 219.0 mm • 54T – 227 mm • 56T – 235 mm •\u003cbr data-start=\"386\" data-end=\"389\"\u003e58T – 243 mm • 60T – 251 mm • 62T – 259 mm\u003c\/p\u003e\n\u003cp data-start=\"435\" data-end=\"578\"\u003eTechnology: Narrow-Wide tooth profile (1-speed)\u003cbr data-start=\"478\" data-end=\"481\"\u003eMaterial: Aluminium 7075-T6\u003cbr data-start=\"509\" data-end=\"512\"\u003eManufacturing: CNC-machined\u003cbr data-start=\"541\" data-end=\"544\"\u003eSurface treatment: Anodising\u003c\/p\u003e\n\u003chr data-start=\"580\" data-end=\"583\"\u003e\n\u003ch3 data-start=\"585\" data-end=\"609\"\u003eCOMPATIBILITY\u003c\/h3\u003e\n\u003cp data-start=\"610\" data-end=\"730\"\u003eFits Shimano cranksets with 110 mm asymmetric bolt circle (4 arms):\u003cbr data-start=\"685\" data-end=\"688\"\u003eDura-Ace R9200, Ultegra R8100, 105 R7100\u003c\/p\u003e\n\u003cp data-start=\"732\" data-end=\"751\"\u003eCompatible chains:\u003c\/p\u003e\n\u003cul data-start=\"752\" data-end=\"816\"\u003e\n\n\u003cli data-start=\"752\" data-end=\"776\"\u003e\n\n\u003cp data-start=\"754\" data-end=\"776\"\u003e12-speed Shimano HG+\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"777\" data-end=\"802\"\u003e\n\n\u003cp data-start=\"779\" data-end=\"802\"\u003e12-speed SRAM Flattop\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"803\" data-end=\"816\"\u003e\n\n\u003cp data-start=\"805\" data-end=\"816\"\u003eKMC chains\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"818\" data-end=\"836\"\u003eGear system: 1×12\u003c\/p\u003e\n\u003cp data-start=\"838\" data-end=\"972\"\u003e\u003cstrong\u003e⚠️ Note:\u003c\/strong\u003e\u003cbr data-start=\"852\" data-end=\"855\"\u003e\u003cstrong\u003eThis 1x (single chainring) is not compatible with 2x (double-setup).\u003c\/strong\u003e\u003cbr data-start=\"925\" data-end=\"928\"\u003e\u003cstrong\u003eOnly intended for use without a front derailleur.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"974\" data-end=\"977\"\u003e\n\u003ch3 data-start=\"979\" data-end=\"1000\"\u003eINFORMATION\u003c\/h3\u003e\n\u003cp data-start=\"1001\" data-end=\"1209\"\u003eALUGEAR chainrings are among the lightest on the market.\u003cbr data-start=\"1055\" data-end=\"1058\"\u003eThrough extensive testing and experience, the arm design has been optimised to significantly reduce weight without compromising strength.\u003c\/p\u003e\n\u003cp data-start=\"1211\" data-end=\"1401\"\u003eThe chainrings are CNC-machined from 7075-T6 aluminium and industrially hard-anodised to provide long-lasting protection against mechanical wear, a sleek appearance, and a pleasant surface finish.\u003c\/p\u003e\n\u003cp data-start=\"1403\" data-end=\"1567\"\u003eThe special Narrow-Wide tooth profile reduces chain noise, minimises wear, and ensures stable and smooth operation across the entire drivetrain – perfect for 12-speed systems.\u003c\/p\u003e\n\u003cp data-start=\"1569\" data-end=\"1675\"\u003eALUGEAR chainrings are the ideal choice if you want a technically advanced, lightweight, and stylish chainring.\u003c\/p\u003e\n\u003chr data-start=\"1677\" data-end=\"1680\"\u003e\n\u003ch3 data-start=\"1682\" data-end=\"1704\"\u003eRECOMMENDATIONS\u003c\/h3\u003e\n\u003cul data-start=\"1705\" data-end=\"2185\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\n\u003cli data-start=\"1705\" data-end=\"1846\"\u003e\n\n\u003cp data-start=\"1707\" data-end=\"1846\"\u003eFor the best look, you can use the ALUGEAR AERO COVER (for \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003cem\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/cover-r7100-for-alugear-chainrings-12-sp-105-cranks?_pos=2\u0026amp;_psq=105+r7100\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003e105 R7100\u003c\/a\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e, \u003cem\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/cover-r8100-for-alugear-chainrings-12-sp-ultegra-cranks?_pos=1\u0026amp;_sid=acc27c815\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003eUltegra R8100\u003c\/a\u003e\u003c\/span\u003e, \u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/cover-pm-r8100-p-for-alugear-chainrings-12-sp-ultegra-with-power-meter?_pos=2\u0026amp;_sid=acc27c815\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003eR8100-P\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e (power meter) or \u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/cover-r9200-for-alugear-klinger-12-sp-dura-ace-cranks?_pos=1\u0026amp;_sid=517adbbba\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003eDura-Ace R9200\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e, \u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/cover-r9200-for-alugear-chainrings-12-sp-dura-ace-cranks?_pos=2\u0026amp;_sid=517adbbba\u0026amp;_ss=r\"\u003eR9200-P crankset\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e).\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"1847\" data-end=\"1938\"\u003e\n\n\u003cp data-start=\"1849\" data-end=\"1938\"\u003eUse only original ALUGEAR bolts for installation – other bolts may damage the cover.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"1939\" data-end=\"2030\"\u003e\n\n\u003cp data-start=\"1941\" data-end=\"2030\"\u003eFor installation, we recommend \u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sporthouse.shop\/products\/alugear-kaedebolte-og-motrikker-4-stk?_pos=1\u0026amp;_sid=51ce60c23\u0026amp;_ss=r\"\u003eALUGEAR bolts and nuts\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e: 7 mm nuts and 6.5 mm bolts.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2031\" data-end=\"2110\"\u003e\n\n\u003cp data-start=\"2033\" data-end=\"2110\"\u003eUse a rear derailleur with a clutch system for optimal chain security.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2111\" data-end=\"2185\" data-is-last-node=\"\"\u003e\n\n\u003cp data-start=\"2113\" data-end=\"2185\" data-is-last-node=\"\"\u003eIt is recommended to use a new chain with your new ALUGEAR chainring.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"sporthouse.shop","offers":[{"title":"Default Title","offer_id":53208053547337,"sku":"5908374260394","price":659.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/3483\/5684\/files\/10_605b1ca8-3e24-4fa0-ac44-f52f4bd34e2f.jpg?v=1761570911","url":"https:\/\/sporthouse.shop\/en\/products\/rund-1speed-til-12s-shimano","provider":"sporthouse.shop","version":"1.0","type":"link"}