For those using TPU vinyl tubes
Always use a hose to prevent damage
Due to the trend towards lightweight tires in recent years, the number of tubes made from thermoplastic polyurethane (TPU) has increased. This material is very sensitive to heat, so when using an electric pump, be sure to use the included hose.
What is a TPU tube?
TPU tubes are attracting attention as a new material that can replace traditional rubber tubes, and are becoming increasingly popular, especially among road bike and mini velo users who prioritize lightweight design.
✅ Examples of popular TPU tube brands:
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Tubolito
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REVOLOOP
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Schwalbe Aerothan
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There are also unbranded products sold on Amazon, AliExpress, etc.
The difference between TPU tubes and other tubes
| item | TPU tube | Rubber (butyl) tube |
|---|---|---|
| Appearance | Translucent to transparent, smooth texture | Black matte rubber texture |
| Weight | Extremely lightweight (around 30g) | Slightly heavy (over 100g) |
| Valve Material | Most are made of plastic | Metal (Presta/Schwarz) |
| heat resistance | Very weak (risk of deformation or melting due to heat) | High |
| Elasticity | High but slightly less durable | High (puncture resistant) |
| Price range | Expensive (2,000 to 4,000 yen) | Regular (500 yen to 1,500 yen) |
Why do we need a hose?
High-temperature air is released from the exhaust port of an electric pump along with the air pressure. If this high temperature is directly transmitted to the TPU tube or plastic valve, it can cause problems such as melting the tube or deforming the valve in just a few tens of seconds .
What can be protected by using a hose?
Use the included hose to:
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Avoids high temperatures from the exhaust port
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Allows heat to escape away from the pump body
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Protects tube connections and prevents valve deformation and damage
If you're not sure if your tube is TPU...
If it has the following characteristics, it may be a TPU tube:
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The tube is translucent to transparent and has a smooth texture.
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Lightweight and easy to roll up
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The part that inserts the air is made of plastic
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The packaging will say "TPU," "Ultralight," or "Superlight."
Summary: TPU tubes are sensitive to heat! Protect them with a hose.
If you are using a TPU tube, be sure to fill it with air via the hose .
Damage caused by heat may not be covered under warranty.
To ensure long-term, safe use, please be sure to check the correct usage before making use of the product.
