Specifications: 8.1x2.0 Inches.Tire Outer Diameter: 200 mm; Inner Diameter: 136 mm; Section Width: 49 mm; Bead Diameter: 150 mm; Bead Width: 7 mm; Section Height: 32 mm. The "8.1-inch" measurement refers to the tire's outer diameter when mounted on the rim.
Size Note: All properly sized solid tires have a slightly smaller inner diameter than the rim's outer diameter. Unlike inflatable tires, solid tires lack inner tube air pressure to stay tight against the rim, so they're intentionally designed this way—using the material's elastic deformation (stretching then shrinking) for a secure fit. This is normal, not a wrong size, and the tire's bead seat width being larger than the rim's groove width follows the same logic
Compatible Vehicles: This 8.1x2.0 solid tire is exclusively compatible with the Segway Ninebot E2/E2 Pro/E2 Plus and Xiaomi 4 Go electric scooters. Important Note: Rim size must match exactly. If you are unsure about compatibility, feel free to contact us for assistance
Puncture-Proof & Maintenance-Free：Features a solid honeycomb structure that requires no inflation. It won't be punctured by nails, gravel, or other sharp objects, eliminating the risk of air leaks and blowouts. No need for frequent tire pressure checks or patching—saving you the hassle of regular maintenance. A solid tire has a service life of at least 3–5 years
Installation Tips：Installing a solid tire can be challenging. Critical Pre-Installation Step: Soak the tire in boiling water for 20+ minutes to soften it thoroughly. Softened tires gain ductility and can be stretched to fit over the rim. We recommend two-person installation for easier handling. For optimal results, we strongly advise having it professionally installed at a local auto shop using a hydraulic press
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