Keep your electric scooter on the road with this Green Line Extra-Thick Inner Tube . Engineered for durability, this butyl rubber tube is significantly thicker than standard factory tubes, providing superior resistance to pinches and punctures. This specific model features a 0° Angled Valve Stem , which is essential for easy inflation on narrow 6-inch rims where straight valves often won't fit. Key Features Heavy-Duty Construction: Made from extra-thick butyl rubber for a longer lifespan and better air retention. Angled Valve Stem (0°): Positioned along the tube centerline for a perfect fit on Xiaomi, GoTrax, and Hiboy style wheels. Multi-Size Compatibility: Designed to fit a wide range of 8.5" to 9.5" tires. Detailed Fitment & Specs Fits Tire Sizes: 8.5x2, 8.5x2.0, 9x2.3, 9.5x2.3, 50/75-6.1, and 50-156. Rim Size: Designed for 6-inch rims. Valve Type: Standard Schrader Valve Stem: Angled Valve Orientation: 0° along tube centerline Brand Compatible Models (8.5" - 9.5" Tires) Xiaomi M365, M365 Pro, Pro 2, 1S, Essential, Mi 3 GoTrax GXL, GXL V2, XR Ultra, XR Elite, G2, G3, G4 Hiboy S2, S2 Pro, S2 Lite, MAX, MAX V2 Bird / Lyft / Spin Bird Air, ES1-300, and various rental-fleet models Other Brands TurboAnt (M10), Vivobike, Denver, and many 8.5" clones Sizing Note: Fits tire widths ranging from 2.0" to 2.3". Compatible with 6-inch rims and features a 0° angled valve stem for easy access in tight wheel hubs. Installation Tip: To prevent pinches during installation, inflate the tube slightly (just enough to give it a round shape) before tucking it into the tire casing. Original Parts for Scooters SKU 136-103