Duro 20 Inch Bike Tube Schrader Valve 20 x 1.75 - 2.125 F/V

Name: Duro 20 Inch Bike Tube Schrader Valve 20 x 1.75 - 2.125 F/V
Brand: DURO
SKU: DURO-TUBE-20-75
Price: 8.00 USD
Availability: InStock

$8.00 USD

Shipping calculated at checkout.

The Duro 20 x 1.75-2.125 Bicycle Tube is a dependable, affordable and easy-to-fit replacement inner tube for 20 inch bikes, ideal for BMX, kids’ bikes, cruisers, commuters and everyday riding around Brisbane, Queensland and Australia.

Duro 20 Inch Features

Fits common 20 inch tyres from 1.75 inch to 2.125 inch wide
Schrader valve suits most BMX, kids’, cruiser and recreational bike rims
Durable rubber construction for everyday reliability
Great replacement tube for puncture repairs and spare kits
Practical choice for family bikes, school bikes and workshop servicing

(more product details...)

loading inventory data..

Ride Now, Pay Later? Yes it's Possible!

We want You to fueal that cycling passion now and with the help of our partners, offer flexible payments terms including 4 interest-free installments (with Afterpay) or over 6, 12 or even up to 24 month repayments (with ZIP). Eligibility, T&Cs and minimum order value conditions may apply.

Earn 0 points on this purchase.

Learn more

More Product Details:

Technical Specifications

Product Name: Duro 20 Inch Bicycle Inner Tube
Product Type: Bicycle inner tube
Wheel Size: 20 inch
Compatible Tyre Sizes: 20 x 1.75, 20 x 1.95, 20 x 2.125
Tyre Width Range: Approximately 1.75 inch to 2.125 inch
Valve Type: Schrader / American valve
Valve Length: Commonly listed around 48mm depending on package
Valve Style: Straight valve
Material: Rubber / butyl-style inner tube construction
Colour: Black
Quantity: 1 tube, depending on supplied listing
Recommended Use: BMX, kids’ bikes, junior bikes, cruisers, recreational bikes, school bikes, commuter bikes and general puncture repair
Best Bike Type: 20 inch bikes using compatible 1.75-2.125 inch tyres and Schrader valve rims
Main Upgrade Purpose: Tube replacement, puncture repair, spare tube kit, family bike maintenance and basic bike service

Compatibility Notes

Designed for 20 inch wheels only.
Not suitable for 16 inch, 24 inch, 26 inch, 27.5 inch, 29 inch or 700C wheels.
Check your tyre sidewall before purchase to confirm the size is within 20 x 1.75 to 20 x 2.125.
The rim must be drilled for a Schrader valve.
If your wheel uses a Presta valve, this tube is not the correct fit unless the rim hole has been safely adapted.

Durable Rubber Tube Construction

The Duro 20 inch tube uses practical rubber construction designed for everyday reliability. It is made for general riding rather than lightweight racing, making it a sensible choice for BMX bikes, kids’ bikes and commuter-style 20 inch wheels.

Schrader Valve Convenience

The Schrader valve is widely used on family bikes, BMX bikes and recreational bicycles. It is easy to inflate with most floor pumps, hand pumps and many service station air pumps, making it especially convenient for parents and everyday riders.

Multi-Size Fit

The 1.75 / 1.95 / 2.125 sizing allows one tube to suit several common 20 inch tyre widths. This makes it a useful spare for families, bike shops and riders who maintain multiple 20 inch bikes.

Everyday Puncture Repair Solution

A fresh inner tube is often the fastest and most reliable fix for punctures, valve failure or slow leaks. It also gives riders peace of mind when kept as a spare at home, in the car or in a repair kit.

Practical Workshop Part

For bike servicing, this is the kind of essential part that keeps everyday bikes moving. It is affordable, easy to replace and suitable for many common 20 inch bike setups.

Tube Fitment

Wheel Diameter: 20 inch
Tyre Width Compatibility: 1.75 inch to 2.125 inch
Common Markings: 20 x 1.75 / 1.95 / 2.125
Valve Type: Schrader / American
Valve Position: Straight
Material: Rubber

Fit Checklist Before Purchase

Before ordering, confirm:

Your tyre sidewall says 20 inch.
Your tyre width is between 1.75 and 2.125 inches.
Your rim uses a Schrader valve hole.
Your tyre is not cracked, split or heavily worn.
Your rim tape is covering spoke holes correctly.
No glass, wire, thorns or debris remain inside the tyre.

Installation Notes

Remove the old tube and inspect the tyre carefully.
Add a small amount of air so the tube takes shape.
Fit the tube evenly inside the tyre.
Make sure the tube is not pinched under the bead.
Inflate gradually and check both sides of the tyre are seated correctly.
Recheck tyre pressure before riding.

The Duro 20 inch Schrader tube is best suited to riders and families looking for a dependable replacement tube for 20 inch bikes used for commuting, school rides, BMX riding and recreational cycling.

Best Suited For

Kids’ bike puncture repairs
BMX bikes
20 inch cruiser bikes
Folding bikes with compatible tyre sizes

Product Care

Check tyre pressure regularly.
Keep tyres inflated within the range printed on the tyre sidewall.
Inspect tyres for glass, thorns, wire or sharp debris.
Check rim tape if punctures occur on the inside of the tube.
Avoid riding under-inflated, as this can cause pinch flats.
Replace cracked, worn or damaged tyres.
Store spare tubes away from heat, sunlight and sharp tools.
Do not overinflate outside the tyre.
Use care when fitting with tyre levers.
Recheck the tyre bead after installation before riding.

Warranty Information

Warranty coverage is subject to Duro or retailer terms and conditions.
Warranty generally applies to manufacturing defects such as faulty seams or valve defects.
Punctures, pinch flats, incorrect installation, tyre damage, rim tape failure, overinflation, underinflation, heat damage and impact damage are generally not covered.
Tube life depends on tyre condition, rim tape condition, pressure, rider weight, road surface and installation quality.
Professional installation is recommended if punctures keep returning or if the cause of air loss is unclear.

Bike shop feedback around Duro tubes is generally positive because Duro is a long-established tyre and tube manufacturer, commonly used for affordable replacement tubes, recreational bikes, family bikes and workshop repairs.

CST 20 Inch Tubes