Schwalbe Inner Tube - Schrader Valve
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Condor CyclesSchwalbe Av 4 Schrader Valve Inner Tube (Fits Brompton)
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Product Information
Full details
This high-quality butyl inner tube is designed for Brompton bicycles, offering superior air retention and reliability. It's the ideal choice for Brompton owners seeking a durable and trustworthy replacement tube. While it provides excellent performance, ensure your wheel size and valve type match the specifications before purchasing.
All features
| Model Part Number | 10462480 |
|---|---|
| Brand | Schwalbe |
Extended Product Information
FAQs
Is this tube suitable for any bicycle?
This tube is specifically designed for Brompton wheel sizes and is not suitable for other bicycle wheel dimensions. Always check the ETRTO or imperial size on your tire.
What does ETRTO 37-340 mean?
ETRTO is a standard sizing system. 37-340 indicates the tire's nominal width (37mm) and its rim diameter (340mm).
Can I use this tube with a Presta valve pump?
No, this tube has a Schrader (AV) valve, which requires a Schrader pump head. Most standard bicycle pumps have interchangeable heads or are designed for Schrader valves.
How long will this tube typically last?
With proper care and avoiding punctures, a high-quality butyl tube like this can last for several years. However, its lifespan is significantly impacted by riding conditions and maintenance.
What is the main advantage of a butyl inner tube?
Butyl tubes are known for their excellent air retention and durability, making them a reliable choice for everyday riding and offering a good balance of performance and cost.
Does the valve length matter?
Yes, the 40mm valve length is suitable for most Brompton rims. Ensure it's long enough for your rim depth to easily attach a pump.
Troubleshooting
Inner tube won't hold air after installation
Ensure the valve stem is straight and properly seated in the rim. Check for small punctures on the tube, especially where it contacts the tire. Verify the tire bead is fully seated on the rim and there are no exposed tube edges.
Difficulty fitting the tube into the tire
Slightly inflate the inner tube before insertion to give it shape. Ensure the tire is correctly seated on the rim before attempting to put the tube in. Avoid twisting the tube during installation.
Valve stem leaks air
Ensure the valve core is tightened properly (if applicable to Schrader valves). Check for any damage to the valve stem or its base where it meets the tube. Make sure the valve cap is securely fastened when not in use.
Repeated punctures
Inspect the inside of the tire carefully for thorns, glass, or other debris. Check the rim strip for damage or sharp edges. Consider using tire liners for added puncture protection if riding in high-risk areas.
Pros and Cons
Pros
- Specifically designed and approved for Brompton bicycles.
- Excellent air retention due to high-quality butyl material.
- Proven reliability and durability for daily use.
- Accommodates multiple common Brompton wheel sizes.
- Standard Schrader valve is widely compatible with pumps.
Cons
- Limited to specific wheel sizes; not universally compatible with all bikes.
- Butyl material may be slightly heavier than latex alternatives.
- Requires correct identification of wheel size for proper fit.
Setup, Compatibility & Care
Compatibility:
This inner tube is designed for Brompton wheel sizes. Please verify your existing tire's ETRTO or imperial size matches one of the following supported dimensions:
- 37-340 (16 x 1 3/8)
- 28-349 (16 x 1 1/8)
- 35-349 (16 x 1 3/8)
- 37-349 (16 x 1 1/4)
- 38-355 (18 x 1 1/8)
- 35-355 (18 x 1.35)
It features a Schrader (AV) valve, commonly found on many bicycles and easily inflated with standard bicycle pumps.
Setup:
- Deflate the old inner tube completely.
- Carefully remove the tire from the rim.
- Remove the old inner tube.
- Slightly inflate the new Schwalbe inner tube to give it shape.
- Insert the new inner tube into the tire, ensuring it is not twisted.
- Seat the tire bead back onto the rim evenly.
- Inflate the tire to the recommended pressure as indicated on the tire sidewall.
Care:
- Regularly check tire pressure and inflate as needed to maintain optimal performance and prevent pinch flats.
- Inspect the inside of the tire for any sharp objects that may have caused a puncture before installing a new tube.
- Keep the valve clean and ensure the valve cap is fitted when not in use.