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SCHWALBE DV12 Bicycle Cycle Bike Inner Tube - 26 x 1 3/8'' - 40mm Woods Valve

SCHWALBE DV12 Bicycle Cycle Bike Inner Tube - 26 x 1 3/8'' - 40mm Woods Valve

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Schwalbe Bicycle Hose 30/47-559/597 26x1.25-1.75 "" Inches DV12 40mm Dunlop

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eBaySchwalbe Bicycle Hose 30/47-559/597 26x1.25-1.75 "" Inches DV12 40mm Dunlop
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Product Information

Full details

The SCHWALBE DV12 Inner Tube is designed for cyclists seeking reliable performance and minimal hassle. Its primary benefit is superior airtightness, leading to fewer inflations and enhanced ride consistency. A potential consideration is its specific size (26 x 1 3/8'') and valve type (40mm Woods Valve), which requires matching tire and rim dimensions. This inner tube features a durable Butyl rubber compound, undergoes dual factory quality checks, and is engineered for low rolling resistance.

All features

Model Part Number10423611
BrandSchwalbe

Extended Product Information

FAQs

What does '26 x 1 3/8'' mean?

This refers to the approximate diameter (26 inches) and width (1.375 inches or 35mm) of the tire that the inner tube is designed to fit. It's important to match this size to your existing tire.

What type of valve is a Woods Valve?

A Woods Valve, also known as a Schrader or American valve, is a common type of valve found on many bicycles. It's characterized by its wider base and a spring-loaded pin in the center. Most modern bicycle pumps have heads that can accommodate this type of valve.

How often should I check my tire pressure?

For optimal performance and to minimize punctures, it's recommended to check your tire pressure before every ride or at least once a week. The SCHWALBE DV12's high airtightness means you might need to add air less frequently than with other tubes, but regular checks are still best practice.

Can this inner tube be used for all types of cycling?

The SCHWALBE DV12 is best suited for general cycling, commuting, and recreational use on bicycles equipped with 26 x 1 3/8'' tires. For high-performance road cycling or aggressive mountain biking, other specialized tubes or tire systems might be more appropriate.

How do I know if this tube will fit my wheel?

You need to confirm that your bicycle's rim is specifically designed for tires sized 26 x 1 3/8''. Look for markings on your current tire or rim, or consult your bicycle's manual or a local bike shop if you are unsure.

What is the benefit of Butyl rubber?

Butyl rubber is a synthetic rubber known for its excellent airtightness and durability. It is commonly used in inner tubes because it retains air pressure well over time, which translates to fewer inflation needs and a more reliable ride.

Troubleshooting

Tube loses air rapidly after installation.

Ensure the tube was not pinched between the tire bead and the rim during installation. Check the valve stem for damage or a faulty seal. Ensure the valve nut (if present) is snug but not overtightened.

Difficulty fitting the tire onto the rim.

Ensure you are using the correct tire size for the rim. Slightly deflate the tube. Sometimes, starting the tire bead opposite the valve and working towards it can help. Avoid using sharp tools that could damage the tube.

Punctures occur frequently.

Maintain consistent and correct tire pressure. Inspect tires regularly for wear or embedded debris. Consider using tire liners for added protection if riding in areas prone to sharp objects.

Valve stem is leaking air.

Ensure the valve cap is securely tightened. If the leak persists, the valve may be damaged and the tube may need replacement. For Woods valves, ensure the internal core is seated correctly.

Pros and Cons

Pros

  • Excellent air retention reduces the need for frequent pumping.
  • Dual factory inspection ensures high quality and reliability.
  • Contributes to a smoother, more efficient ride due to low rolling resistance.
  • Durable Butyl rubber construction provides longevity.
  • Designed to help minimize punctures when maintained with correct pressure.

Cons

  • Specific size (26 x 1 3/8'') limits compatibility to certain wheel types.
  • Woods Valve may not be compatible with all pump types (though most modern pumps accommodate it).
  • Requires careful matching with the correct tire size to ensure a secure fit.

Setup, Compatibility & Care

Compatibility:

  • Ensure your bicycle wheel rim is designed for tires with the size 26 x 1 3/8''.
  • Verify that your bicycle's frame and brakes have adequate clearance for this tire size.
  • The 40mm Woods Valve is compatible with most bicycle pumps, particularly those with Schrader valve heads. Check your pump's compatibility if unsure.

Setup:

  1. Remove the wheel from your bicycle.
  2. Deflate any old tube completely.
  3. Carefully unseat one side of the tire from the rim.
  4. Remove the old inner tube.
  5. Slightly inflate the new SCHWALBE DV12 inner tube to give it shape.
  6. Insert the valve stem through the valve hole in the rim.
  7. Tuck the tube evenly into the tire carcass.
  8. Reseat the tire bead onto the rim, working your way around.
  9. Inflate the tire to the recommended pressure as indicated on the tire sidewall.
  10. Reinstall the wheel onto the bicycle.

Care:

  • Regularly check tire pressure (ideally before every ride or at least weekly) and inflate as needed to the pressure recommended on your tire's sidewall. This is crucial for performance, safety, and preventing pinch flats.
  • Inspect the inside of the tire casing periodically for embedded objects like glass or thorns that could cause punctures.
  • Keep the valve stem clean and ensure the valve cap is on when not inflating.

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