{"product_id":"park-tool-cc-4-2-chain-wear-indicator-gauge-for-5-13-speed-single-speed-chains","title":"Park Tool CC-4.2 Chain Wear Indicator Gauge for 5-13 Speed \u0026 Single-Speed Chains","description":"\u003cp\u003eThe Park Tool CC-4.2 Chain Wear Indicator is an essential workshop tool designed to accurately measure the wear on bicycle chains. By detecting chain wear early, it helps prevent poor shifting performance and costly damage to your drivetrain components. This drop-in style gauge eliminates guesswork by providing precise measurement points, ensuring you replace your chain at the right time.\u003c\/p\u003e\n\n\u003cp\u003eCrafted with laser-cut precision, the CC-4.2 contacts the chain in three strategic locations, giving you a reliable reading over a long section of the chain. Compatible with a wide range of chains, including SRAM® T-Type, SRAM® Flattop™, Shimano® XTR® 12-speed, Campagnolo® Ekar™ 13-speed, and single-speed chains, it accurately indicates wear at 0.5%, 0.75%, and 1.0%—key thresholds for most manufacturers' replacement recommendations.\u003c\/p\u003e\n\n\u003cp\u003eMade in the USA, this tool is backed by Park Tool’s legendary limited lifetime warranty, ensuring durability and trustworthiness for your workshop needs. Always double-check specific drivetrain manufacturer guidelines to make the most of this reliable chain checker.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecisely measuring chain wear to maintain optimal shifting performance\u003c\/li\u003e\n  \u003cli\u003ePreventing premature drivetrain damage by timely chain replacement\u003c\/li\u003e\n  \u003cli\u003eWorking seamlessly with 5 to 13-speed derailleur and single-speed chains\u003c\/li\u003e\n  \u003cli\u003eProviding quick and easy chain wear diagnostics with a drop-in gauge design\u003c\/li\u003e\n  \u003cli\u003eOffering a durable, lifetime-warranted tool made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eChains outside the 5 to 13-speed or single-speed compatibility range\u003c\/li\u003e\n  \u003cli\u003eReplacing specific manufacturer recommendations for chain maintenance\u003c\/li\u003e\n  \u003cli\u003eMeasuring wear on non-derailleur or specialty chains not listed in compatibility\u003c\/li\u003e\n  \u003cli\u003eServing as a tool for other drivetrain adjustments beyond chain wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the CC-4.2 be used on all bike chains?\u003c\/strong\u003e\u003cbr\u003eThe CC-4.2 is compatible with most 5 to 13-speed derailleur chains and single-speed chains, including popular brands like SRAM, Shimano, and Campagnolo. However, it may not fit specialty or non-standard chains.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the tool indicate when to replace the chain?\u003c\/strong\u003e\u003cbr\u003eIt measures wear at 0.5%, 0.75%, and 1.0%, which are common thresholds recommended by chain manufacturers to ensure optimal drivetrain performance and longevity.\u003c\/p\u003e","brand":"Park Tool","offers":[{"title":"Default Title","offer_id":45472169132207,"sku":"QKCC42","price":16.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1731600205-20857300.jpg?v=1768520665","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/park-tool-cc-4-2-chain-wear-indicator-gauge-for-5-13-speed-single-speed-chains","provider":"Swinnerton Cycles","version":"1.0","type":"link"}