4.10/3.50-4 Inner Tube for Electric Scooter // With 90° Out Bent Valve

Compatible with: Batch_6

CST 4.10/3.50-4 inner tubes deliver superior air retention and puncture resistance for demanding electric scooter applications. Precision-molded butyl rubber construction ensures long-term structural integrity under high-torque acceleration and heavy load conditions. Integrated 90-degree out-bent valve stems simplify inflation procedures for hub motors featuring limited clearance or restricted access points. Engineered specifically for 4-inch rim diameters, this high-performance component serves as a reliable replacement for standard 8.5-inch class electric scooter tires.

Product: CST 4.10/3.50-4 Pneumatic Inner Tube
Valve Configuration: 90-Degree Out-Bent Valve Stem
Material: Reinforced High-Density Butyl Rubber
Compatibility: Standard 8.5-inch electric scooter wheel assemblies
Primary Application: Replacement part for mobility scooters, electric carts, and recreational e-scooters
Performance Benefit: Enhanced accessibility for pneumatic maintenance in compact rim designs

12,99€

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Exact Compatibility and Fitment Notes

CST 4.10/3.50-4 pneumatic inner tubes function as replacement components for standard 8.5-inch electric scooter wheel assemblies. Use these units specifically for mobility scooters, electric carts, and recreational e-scooters utilizing 4-inch rim diameters. Integrated 90-degree out-bent valve stems accommodate hub motors with restricted clearance, ensuring access to the inflation point where straight stems fail to fit. Verify rim diameter before purchase to prevent structural misalignment or tube pinching during inflation.

Material Durability and Installation Advice

High-density butyl rubber construction facilitates consistent air retention and resists puncture damage during routine operation. Heavy-load conditions and frequent high-torque acceleration eventually fatigue rubber compounds, necessitating replacement when air pressure consistency declines or visual cracks appear on the surface. Installation requires complete deflation of the old unit and careful removal from the tire casing. Apply a small amount of talcum powder to the inner tube surface to reduce friction and minimize the risk of pinching between the tire bead and the rim during reassembly. Ensure the valve stem aligns correctly with the rim opening before inflating to the pressure specifications indicated on the tire sidewall. Regular pressure checks prevent premature sidewall wear and extend service intervals for the assembly.

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Warranty and Support

Fast and Free Shipping in EU

At electrotraveller.com, we offer free delivery for all orders exceeding 500 €. Our products will be delivered to your address within 2 – 5 business days after receipt of payment. We deliver to most EU countries.

We also offer pre-order options for certain products. The expected date when the product will be available for shipment is indicated for these items. However, the date may change depending on the distributor.

In the event that some products have a longer delivery time, they will be available again, but the delivery date is unknown.

For more information and orders, you can contact our support by phone at +386 40 654 339 or by email at info@electrotraveller.com.

Service and Spare Parts

ELECTROTRAVELLER offers complete availability of spare parts for all electric scooters in its range.

We ship spare parts fast, within 2 to 5 days. For inquiries, contact us at info@electrotraveller.com or call +386 40 654 339.

Please complete this form to order spare parts.

To claim warranty service, please fill out the form at warranty claim form.

Keep the original packaging to ensure safe transportation of your scooter to our workshop, minimizing the risk of damage.

We offer a wide range of service, including warranty and non-warranty repairs. Our service ensures that your electric scooter operates flawlessly and safely in accordance with warranty conditions. In addition to warranty repairs, we also offer all other repairs, upgrades, and the replacement of tires and other spare parts.

Because we understand the value of your time, we want to provide you with the fastest possible resolution of problems. Most minor issues are resolved during the service visit.

In addition to service, we also offer a wide range of spare and replacement parts for your electric scooter. In our online store, you can find everything from batteries and motors to brakes and tires and tubes. If you need help choosing the right part for your electric scooter, call us (+386 40 654 339) or email us at info@electrotraveller.com.

Warranty

ELECTROTRAVELLER offers a 1-year warranty on all electric scooter models, with an option to extend the warranty by an additional year for 150 €.

Warranty Highlights:

The warranty lasts for one year.
It covers all manufacturing defects.
You can purchase an extra year of warranty for 150 €.
For warranty issues, we provide fast and free shipping via GLS, DHL, or UPS. Keep the original packaging for this purpose.

14-Day Return Policy:

If you are not fully satisfied with your product, we offer a 14-day return guarantee.

Return Conditions:

The product must be unused and in its original packaging.
The packaging must not be damaged.

ELEKTRON KINETIK / PRO / GTR

Elektron electric scooters offer high performance, exceptional practicality, and remarkable durability. They are engineered for versatility in any condition.

Starting from 1.349,00 €