{"product_id":"fc-rs520-double-12-speed-chainset","title":"FC-RS520 double 12-speed chainset","description":"\u003cul\u003e\n\u003cli\u003eLightweight 12-speed 2-piece design chainset\u003c\/li\u003e\n\u003cli\u003eInnovative forged and anodised aluminium crank arms for minimum flex\u003c\/li\u003e\n\u003cli\u003eThe chainring teeth have been developed to work in conjunction with Hyperglide\u0026amp;plus 12-speed chains for increased contact to provide greater efficiency and improved power transfer\u003c\/li\u003e\n\u003cli\u003e2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameter\u003c\/li\u003e\n\u003cli\u003eCan be used with Shimano external or press-fit bottom brackets\u003c\/li\u003e\n\u003cli\u003eThe system allows for easier installation, adjustment, and maintenance\u003c\/li\u003e\n\u003cli\u003eLightweight anodised aluminium chainrings for smooth and precise shifting\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano 105","offers":[{"title":"50 \/ 34 teeth \/ Black \/ 165 mm","offer_id":57272200069494,"sku":"FCRS520A04","price":206.0,"currency_code":"USD","in_stock":true},{"title":"50 \/ 34 teeth \/ Black \/ 170 mm","offer_id":57272200102262,"sku":"FCRS520C04","price":206.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0535\/6896\/2742\/files\/fcrs520_62e0ebc5-9f80-40a3-902f-a5a9035bce17.jpg?v=1770831100","url":"https:\/\/ruk-bikes.com\/en-us\/products\/fc-rs520-double-12-speed-chainset","provider":"RUK-BIKES","version":"1.0","type":"link"}