{"product_id":"inner-tube-chaoyang-20x4-04-9-for-electric-bike-engwe-engine-pro-2-0","title":"Chaoyang Inner Tube 20 x 4.0\/4.9 for Engwe Engine Pro 2.0 Electric Bicycle","description":"\u003ch2\u003eChaoyang Inner Tube 20 x 4.0\/4.9 for Engwe Engine Pro 2.0 Electric Bicycle\u003c\/h2\u003e\n\u003cp\u003eThis Chaoyang inner tube is specifically designed for the Engwe Engine Pro 2.0 electric bicycle, fitting tires with a nominal size of 20 x 4.0 to 20 x 4.9 inches. It serves as a direct replacement for a damaged or worn inner tube, helping to restore proper tire function and ride quality.\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 Sized 20 x 4.0\/4.9, this inner tube is engineered to match the tire specifications of the Engwe Engine Pro 2.0 electric bicycle.\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 many 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 when inflated, an inner diameter of 400mm, and a width of 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\u003eChoosing the Correct Inner Tube\u003c\/h3\u003e\n\u003cp\u003eTo ensure correct fitment, always verify the size markings on the sidewall of your existing tire. While this inner tube is specified for 20 x 4.0\/4.9 tires, checking your tire's exact dimensions (e.g., 20 x 4.0, 20 x 4.5, 20 x 4.9) is crucial. Also, confirm that your wheel rim is compatible with a Schrader valve and that the valve hole on your rim accommodates the valve's diameter and length.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and Safety Guidance\u003c\/h3\u003e\n\u003cp\u003eProper installation is essential for the longevity and safety of your inner tube and tire. Before installation:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCarefully inspect the inside of the tire for any sharp objects, debris, or damage that could puncture the new tube.\u003c\/li\u003e\n  \u003cli\u003ePartially inflate the new inner tube before inserting it into the tire to give it shape and help prevent pinching during installation.\u003c\/li\u003e\n  \u003cli\u003eEnsure the inner tube is seated evenly within the tire casing and that the valve stem is straight and securely positioned in the rim hole.\u003c\/li\u003e\n  \u003cli\u003eWhen inflating, follow the recommended pressure range indicated on your tire's sidewall. Do not over-inflate.\u003c\/li\u003e\n  \u003cli\u003eAfter installation and initial inflation, check for proper bead seating around the entire circumference of the rim on both sides.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ULIP","offers":[{"title":"Default Title","offer_id":64137542664569,"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-engine-pro-2-0","provider":"eVolt.eu","version":"1.0","type":"link"}