GLDYTIMES 2pcs 90/65-6.5 Heavy Duty Inner Tube with 90-degree Bent Valve

• Specifications:This inner tube (size: 100/90/65-6.5) has an inner diameter of 16cm, an outer diameter of approximately 28cm, and a width of 6.1cm. With a net weight of 0.175kg, it can replace the original inner tubes of sizes 100/65-6.5, 80/65-6.5, and 110/50-6.5
• Upgraded Stainless Steel Valve Stem:The 90/65-6.5 inner tube is equipped with an upgraded silver valve stem. Compared with traditional copper valve stems, its material hardness is increased by 30%, so it is less likely to deform even after repeated insertion and removal of the air pump connector. It also resists rusting and air leakage in humid environments
• Upgraded Stainless Steel Valve Stem:The 90/65-6.5 inner tube is equipped with an upgraded silver valve stem. Compared with traditional copper valve stems, its material hardness is increased by 30%, so it is less likely to deform even after repeated insertion and removal of the air pump connector. It also resists rusting and air leakage in humid environments
• Material:Crafted from thickened butyl rubber, this inner tube offers much better airtightness than ordinary natural rubber. Combined with the thickening process, it is less prone to damage when encountering small gravel on the road or slight bumps. The inner tube features a 1.5mm thickened design and weighs 175g, while most inner tubes available on the market are only 0.9mm thick
• Installation Note:Before installation, be sure to use a clean brush to clean the inner wall of the outer tire and check the inner tube for air leakage. Inflate the inner tube with a small amount of air, then submerge it in clean water and rotate it slowly, carefully checking for any air bubbles

Specifications & Dimensions For this 100/75/65-6.5 inner tube, the inner diameter is 16.1cm, outer diameter is approximately 27.2cm, width is 5.9cm, and net weight is 0.178kg. Compatible Sizes & Models It can replace original inner tubes of sizes 100/65-6.5, 90/65-6.5, and 110/55-6.5, and is suitable for electric scooters with these tire sizes (e.g., models like Apollo Explore, Fluxx FX, Varla Eagle One, Kaabo Wolf King GT). It fits as long as the scooter tire side is marked with any of the above sizes. Key Advantages Upgraded Stainless Steel Valve: Resists deformation during repeated air pump connector insertion/removal, and prevents rusting or air leakage in humid environments. Thickened Butyl Rubber: Offers far better air tightness than ordinary natural rubber. With a tube wall 0.8mm thicker than regular butyl inner tubes, it’s less likely to be damaged by small gravel or slight bumps. Installation Tips Use a clean brush to clean the inner wall of the outer tire and check the inner tube for air leakage. Inflate the inner tube with a small amount of air, then submerge it in clean water and rotate slowly to observe if bubbles emerge (a sign of leakage).