Bontrager Standard Inner Tube - 20x1.5-2.125 - 35mm Schrader Valve

The Bontrager Standard 20x1.5-2.125 35mm Schrader Valve Tube is a premium-quality inner tube desig...

Best current price£6.99from Leisure Lakes Bikes

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4 offers from £6.99 - £7.00

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Leisure Lakes BikesBontrager Standard 20x1.5-2.125 35mm Schrader Valve Tube
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£6.99
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Lepape EMEABontrager Chambre À Air Standard 20X1.5-2.125 Avec Valve Schrader
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TisoBontrager 16 x 1.50-2.125 Schrader Valve Inner Tube - 0.9mm Wall Thickness - Rubber - Tyre Punctures - Bikes - Cycling
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Product Information

Full details

The Bontrager Standard 20x1.5-2.125 35mm Schrader Valve Tube is an ideal choice for cyclists seeking a reliable replacement tube for 20-inch wheels, offering a balanced design that favors both durability and weight savings. It is best suited for daily commuters and casual riders who prioritize ease of maintenance, though users should ensure their rim setup specifically accommodates a Schrader valve before purchase.

All features

Model Part Number64779
BrandBontrager

Extended Product Information

FAQs

Does this tube fit any 20-inch tire?

It is designed for tires with a width between 1.5 and 2.125 inches. Check your tire sidewall for the ETRTO size 38/54-406 to ensure compatibility.

Can I use this with a Presta pump?

No, this tube requires a Schrader-compatible pump head. You can purchase a Schrader-to-Presta adapter if you only have a Presta pump.

Is the valve core really removable?

Yes, this model features a removable Schrader valve core for easier maintenance.

How much does the tube weigh?

This tube weighs approximately 120 grams.

Can I use this for road racing?

While durable and reliable, this is a standard-weight tube. Competitive racers may prefer lighter, specialized race tubes, though this is excellent for training.

Troubleshooting

Tube loses air shortly after installation

Check for tire pinch during installation or ensure the valve core is fully tightened using a core removal tool.

Valve does not fit through rim hole

Verify the rim is drilled for Schrader valves; some high-end road rims only accept the narrower Presta valve.

Difficult to seat the tire bead

Apply a small amount of soapy water to the tire beads to help them slip into the rim groove more easily.

Pros and Cons

Pros

  • Durable 0.9mm wall thickness reduces flat risk
  • Removable valve cores allow for easy maintenance
  • Lightweight design at only 120g
  • Wide tire width compatibility range

Cons

  • Not suitable for high-pressure Presta-only rims
  • Limited to 20-inch wheel sizes
  • Requires specific Schrader-compatible pump heads

Setup, Compatibility & Care

Installation is straightforward. Ensure your rim has a hole large enough for a Schrader valve; if you are switching from Presta valves, you may need a rim adapter.

  1. Check Tire Seating: Always inspect the inside of your tire casing for debris before inserting the new tube.
  2. Avoid Pinching: Inflate the tube just enough to give it shape before placing it inside the tire to avoid pinching between the bead and the rim.
  3. Inflation: Ensure the valve is straight in the rim hole and tighten the locking nut (if applicable) before inflating to the manufacturer's recommended PSI.
  4. Care: Store spare tubes in a cool, dark place, away from sunlight and ozone sources to prevent rubber degradation.

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