The 26 x 1 3/8 in. Solid (Flat-Free) Wheelchair Inner Tube Insert features a design made of solid urethane and fits all 26 x 1 3/8 inch or 37-590 wheelchair tires from Primo, Cheng Shin, and Kenda.
Product Features
- Constructed from long lasting solid urethane
- Completely flat-free—no air required
- Reusable and cost effective over time
- Compatible with wheelchair tires from Primo, Cheng Shin Tire (CST), Kenda, and other brands using metric size 37-590
- Latex free.
- Sold individually (each).
Solid Insert Benefits:
This solid urethane insert replaces traditional air-filled inner tubes, offering reliable, puncture-proof performance. Commonly referred to as an air-free insert made from poly foam. Ideal for users seeking a maintenance-free alternative, the reusable design also provides long-term savings by reducing the need for frequent tube replacements.
Installation Notes:
Installation is more challenging than with standard air-filled tubes, as the insert maintains the shape of a fully inflated tube. The process is similar to standard installation but requires additional effort. We recommend using a tire lever bar to assist with installation, which can be found at the link below:
DIYIS26, IS026, IS26
We accept returns within 30 days of delivery. For more information, check out our full returns policy.
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