{"product_id":"inner-tube-chaoyang-20x4-04-9-for-electric-bike-engwe-x20","title":"Chaoyang Inner Tube 20 x 4.0\/4.9 for Engwe X20 Electric Bicycle","description":"\u003ch2\u003eChaoyang Inner Tube 20 x 4.0\/4.9 for Engwe X20 Electric Bicycle\u003c\/h2\u003e\n\u003cp\u003eThis Chaoyang inner tube is specifically designed for electric bicycles, offering a suitable replacement for the Engwe X20 model. It is compatible with tyres marked 20 x 4.0 or 20 x 4.9.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe inner tube is a critical component for pneumatic tyres, holding the air pressure that supports the bicycle and provides cushioning. This Chaoyang inner tube is made from a durable rubber material, intended for reliable, long-lasting use in your Engwe X20 electric bicycle.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExact Fit:\u003c\/strong\u003e Designed for Engwe X20 electric bicycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTyre Size:\u003c\/strong\u003e Compatible with 20-inch tyres with widths ranging from 4.0 to 4.9 inches. Always check the sidewall marking of your existing tyre for the precise dimensions (e.g., \"20 x 4.0\" or \"20 x 4.9\").\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e Features a Schrader valve (also known as an American valve), which is common on electric bicycles and allows for easy inflation with standard pumps. The valve length is approximately 32mm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e The inner tube has an approximate outer diameter of 550mm and an inner diameter of 400mm when uninflated. Its width is approximately 60mm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e The net weight of the inner tube is approximately 0.38 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation and Safety Guidance\u003c\/h3\u003e\n\u003cp\u003eCorrect installation is crucial for the performance and longevity of your inner tube and tyre. We recommend professional installation if you are unfamiliar with the process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCheck Tyre and Rim:\u003c\/strong\u003e Before installing, thoroughly inspect the inside of your tyre for any sharp objects, punctures, or damage. Ensure the rim tape is intact and covers all spoke holes to prevent punctures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve Hole Alignment:\u003c\/strong\u003e Make sure the valve stem aligns correctly with the valve hole in the rim.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvoid Pinch Flats:\u003c\/strong\u003e When seating the tyre bead, ensure no part of the inner tube is pinched between the tyre and the rim. Inflate slowly and check that the tyre bead is evenly seated around the entire rim on both sides.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInflation:\u003c\/strong\u003e Inflate the inner tube to the pressure recommended on your tyre's sidewall. Do not overinflate.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePost-Installation Check:\u003c\/strong\u003e After installation and initial inflation, visually inspect the tyre and rim for proper seating and any bulges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003eThis inner tube is a direct replacement part. Please verify the tyre dimensions on your Engwe X20 electric bicycle to ensure compatibility before ordering. EU delivery is typically within 3-7 working days.\u003c\/p\u003e","brand":"ULIP","offers":[{"title":"Default Title","offer_id":64137543483769,"sku":"ULP2842.00","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0902\/7076\/1337\/files\/chaoyang-inner-tube-20x4-0-4-9-for-engwe-engine-pro-3-0-boost-electric-bicycle-01.webp?v=1785602470","url":"https:\/\/www.evolt.eu\/pl\/products\/inner-tube-chaoyang-20x4-04-9-for-electric-bike-engwe-x20","provider":"eVolt.eu","version":"1.0","type":"link"}