{"product_id":"park-tool-chain-checker-cc-4-2-bike-chain-tool","title":"Park Tool Chain Checker CC-4.2 Bike Chain Tool","description":"\u003cp\u003eA worn bicycle chain causes poor shifting performance and can actually wear out drivetrain components, causing more expensive problems.\u003c\/p\u003e\n\u003cp\u003eThe Park Tool CC-4.2 Chain Checker is a drop-in style gauge that measures bicycle chain wear.\u003c\/p\u003e\n\u003cp\u003eThe laser-cut CC-4.2 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is necessary.\u003c\/p\u003e\n\u003cp\u003eThe tool works on any 5 to 13-speed derailleur chain (including SRAM T-Type, SRAM Flattop, Shimano XTR 12-speed, and Campagnolo Ekar 13-speed chains) or single-speed chain, and is designed to accurately indicate when a chain reaches 0.5%, 0.75%, and 1.0% wear, the points at which most chain manufacturers suggest replacement.\u003c\/p\u003e\n\u003cp\u003eGeneral replacement guidelines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-sprocket (single-speed) chains: replace chain at or just before 1.0%\u003c\/li\u003e\n\u003cli\u003e5-to-10-speed chains: replace chain at or just before 0.75%\u003c\/li\u003e\n\u003cli\u003e11-to-13-speed chains: replace at or just before 0.5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMany drivetrain manufacturers have unique recommendations specific to their components. Always double-check to be sure.\u003c\/p\u003e","brand":"Park Tool","offers":[{"title":"Default Title","offer_id":56542002446716,"sku":"QKCC42","price":17.49,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0385\/4457\/2460\/files\/parktool-cc4.2-1.jpg?v=1774522925","url":"https:\/\/sdjsports.com\/de\/products\/park-tool-chain-checker-cc-4-2-bike-chain-tool","provider":"SDJ Sports","version":"1.0","type":"link"}