2 PCS 8.5 Inch Heavy Duty Scooter Inner Tubes, 8 1/2 x 2 (50/75-6.1) TR4A Straight Stem Valve Tyre Tubes Compatible with 8 1/2x2 8.5x2.0 Xiaomi M365/Pro 2/1s Electric Scooter Tire Tubes

• Compatibility: Compatible with a wide variety of scooters, bikes, and more- This 8.5 inch inner tubes Fits most gas and electric scooter models. Such as compatible with xiaomi m365/m365 pro/pro 2/1s/gotrax gxl v2 electric scooter.
• High air tightness: High Butyl rubber content adds better air retention to inner tubes to prevent air leakage.
• High quality:Butyl rubber better shock absorption, but also adds more elasticity, shock absorption, shock and puncture resistance, smoother ride.
• Thickening design: 40% thicker than ordinary inner tube, thickness of 2.0mm; For increased durability, the thicker inner tube walls also better absorb shock and vibration for a smoother ride.
• Pure copper valve: Valve made of pure copper made of pure copper, corrosion resistance is not easy to leak, TR4A straight valve is more beautiful.
• Package Include:2 pcs 8 1/2 x 2 Heavy Duty Inner Tubes
• After-sales service: If you have any questions about the product within 180 days of purchase, you can contact us, we will do our best to solve the problem for you!

The thickness is 20% thicker than a normal inner tube, which enhances durability, and the thicker inner tube walls also better absorb shock and vibration for a smoother ride.