{"product_id":"ird-chainring-polaris1x-direct-mount-12sp-3mm-offset","title":"IRD Chainring Polaris1x Direct Mount 12sp (3mm offset)","description":"\u003cp\u003e\u003cspan\u003ePrecision CNC-machined chainrings designed specifically for 1x set ups where chain retention needs to be optimized. In gravel to MTB gearing.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e– 7075 T6 aluminum\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e– SRAM 3-bolt Direct Mount (not compatible with SRAM 8-bolt mount)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e– 3mm offset (On Boost cranks sets up a 52mm chainline. On the IRD Polaris Crank sets up a 48.5mm chainline)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e– Anodized black and silver\u003c\/span\u003e\u003c\/p\u003e","brand":"Parts","offers":[{"title":"Black \/ 38T","offer_id":67626012049687,"sku":null,"price":59.95,"currency_code":"USD","in_stock":false},{"title":"Silver \/ 38T","offer_id":67626012082455,"sku":null,"price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/7652\/8704\/files\/Screenshot2026-10-03091339.png?v=1791033242","url":"https:\/\/bootleggerbikes.com\/products\/ird-chainring-polaris1x-direct-mount-12sp-3mm-offset","provider":"Bootlegger Bikes","version":"1.0","type":"link"}