Inner Tube 8.5 x 2 90° Bent Valve

High-Quality Inner Tube for Electric Scooters

Choosing a reliable inner tube is essential to prevent punctures and air loss.

At the eVolt service network, we tested many inner tube brands and selected those that perform best in powerful scooters, featuring top-quality rubber and valve materials.

These inner tubes fit tires sized 8.5 x 2.0, 8.5 x 3.0, 9 x 2.0, and 9 x 3.0.

Preventing Flat Tires

The most common cause of flat tires is incorrect inner tube pressure. Most electric scooters require at least 3.5 bar, which should be checked regularly with a pressure gauge—ideally once a week.

Riding with improper pressure can lead to:

• Inner tube damage and punctures
• Tire wear from inside and outside
• Poor grip and higher risk of slipping
• Longer braking distances
• Poor handling

Because inner tube valves can be hard to reach, we offer a valve extender that makes inflation much easier.

Service Information

Incorrect inner tube installation can cause issues such as:

• Motor cable damage
• Motor frame damage
• Sharp cuts on the rim
• Damage to the tire and the new inner tube

When replacing a flat inner tube, always check the outer tire’s condition. A tire damaged by low pressure will quickly ruin a new inner tube.

Share Your Experience

If you’re satisfied with your purchase and our service, please take a moment to leave a review and help other e-scooter riders make the right choice.