Super73 Inner Tube – OEM Replacement (20″ × 4.0")

Common replacement part for a flat, leaking, or punctured tube on Super73 models with 20" × 4.0" tires. This OEM inner tube is a direct replacement and includes basic valve accessories.

Does not include a tire or wheel liner. Confirm sizing before ordering.

Compatible with: Super73 models running 20" × 4.0" tires (Z-Series, base S-Series, and others).

Have a question before or after your purchase? Our team is here to help with product guidance, compatibility questions, and order support.

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We ship nationwide within the United States. Shipping times and costs vary based on product type and destination.

• Small items typically ship within 1–3 business days
• Larger items and vehicles may require additional handling time
• Pre-orders ship once inventory arrives (estimated dates listed on product pages)

Tracking information is provided once your order ships.