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20 x 4 Inner Tube | Durable & Easy to Install for Electric Bikes

$35.00 AUD
Shipping calculated at checkout.
20 x 4 Inner Tube

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Disclaminer

Ride Responsibly, Ride Epic! G'day legends! All Cooly Bikes are built for epic adventures and good times. But every state and territory across Australia has different rules about where and how you can ride these beauties.

Power & Legal Stuff: Our e-bikes come road-legal at 250W with a 25km/h max speed (complies with Australian Design Rules). But here's where it gets exciting, they can be unlocked to unleash the full 1000W beast mode hitting up to 50km/h! Just remember, that full power is strictly for private property and off-road adventures only, not for public roads, bike paths, or shared spaces.

Your ride, your responsibility! Make sure you know the local laws for roads, bike paths, footpaths, and shared spaces in your area. Always gear up with proper protective equipment (especially that helmet, your noggin's worth protecting!), and ride smart.

All our bikes meet Australian safety standards (EN/AS 15194 & AS/NZS 60335), so you know they're built right. The info we share is general guidance to help you out, but every situation's different. When in doubt, check with your local authorities about what's allowed in your neck of the woods.

Stay safe have fun, and welcome to Australia's most affordable e-bike collection! 🤙

Shipping & Delivery

🚚 Cooly Bikes Shipping Info

When will my order be processed?
We get moving pretty quick! Orders are processed Monday to Friday (no weekend shipping, we ride then too 😎). Once you place your order, give us 1–3 business days to process it, then we’ll ship it out the next day.

During busy periods like holidays or sales, things might take a little longer, appreciate your patience!

When will I get my order?

  • 5-10 business days, depending on your location.
  • Bolt, Breeze, Rerode or Surron, these are special order items and take 40–50 days from the date of purchase to arrive, trust us, they’re worth the wait.

Need to make a change?
If you need to change or cancel your order, let us know ASAP. Once it’s been processed and packed, we won’t be able to make any changes.

Why did my order arrive in separate packages?
No stress, it’s normal. To get your gear to you as fast as possible, we ship from different warehouses depending on stock.

Note: All shipping timeframes exclude any customs or clearance delays.

Tracking your order:
As soon as your gear leaves the warehouse, we’ll shoot you a tracking link so you can follow it all the way to your driveway. You can also check it out anytime here:

👉 Track Your Order

Cooly Bikes Warranty

🛠 Warranty Info – The Cooly Way

We’ve got your back for 12 months on the big stuff:

  • Motor
  • Controller
  • Battery
  • Charger
  • Flywheel
  • Display
  • Speed Control Switch

Just make sure you're the original owner and have your proof of purchase handy — easy!

✅ What’s Covered

Manufacturer Faults – If something’s gone wrong straight from the factory, we’ll sort it.

🚫 What’s Not Covered

We’re chill, but here’s where things get tricky:

  • Crashes, stunts, or impacts aren’t covered. Ride it, don’t launch it.
  • Floods, fires, storms, or water damage – not cool, but not covered.
  • Rust, stains, or damage from being left out in the wild.
  • Dirt, sand, or anything funky causing internal damage.
  • Repairs or installs not done by an authorised Cooly tech.
  • Add shipping insurance at checkout if you want extra peace of mind.
  • Think tyres, tubes, bearings, brake pads, seats, these wear out over time.
  • If it’s in the manual, it matters. Give it a look!
  • Any tweaks or parts not Cooly-approved can void your warranty.
  • Prizes are epic, but they don’t come with warranty cover.

Refund & Returns

🔄 Cooly Bikes Return Policy

We get it, sometimes things don’t work out. That’s why we’ve got a 5-day return policy. You’ve got 5 days from the time your order lands to let us know if you want to return it.

To be eligible, your item needs to be:

✔️ In the same condition you got it

✔️ Unused, with all tags attached

✔️ In its original packaging

✔️ Proof of purchase handy

Want to start a return?
Shoot us an email at connect@coolybikes.com and we’ll take care of the rest. If your return is approved, we’ll send you the shipping label and return instructions.

⚠️ Quick heads up: If you send something back without chatting with us first, we won’t be able to process the return, and any return shipping costs will be on you.

Questions about returns?
Always happy to help — drop us a line at connect@coolybikes.com

🚨 Damaged or Wrong Item?

Check your order when it arrives and let us know straight away if something’s not right whether it’s damaged, faulty, or just not what you ordered. We’ll sort it.

🚫 What Can’t Be Returned?

Some stuff’s a no-go for returns, including:

  • Custom or personalised items
  • Sale items or gift cards
  • Used Items

Not sure if your item qualifies? Just ask!

🔁 Need to Exchange?

The quickest way is to return your original item and place a new order once the return is approved.

💰 Refunds

Once your return arrives and we’ve given it a once-over, we’ll confirm whether it’s all good. If approved, your refund will be processed back to your original payment method within 10 business days.

Just a heads up, it may take a few more days for your bank or card provider to clear it on their end.

If it’s been more than 15 business days since we approved your return and you haven’t seen your refund, hit us up at connect@coolybikes.com

Description

20 x 4 Inner Tube: Durable & Reliable for Your Electric Bike Adventures

Premium rubber construction with ultra-durable performance - $35

Looking for a reliable inner tube for your adventures? The 20 x 4 Inner Tube is designed to withstand the toughest conditions, giving you the freedom to explore without worry whilst ensuring hassle-free rides. With superior rubber construction and easy installation, this isn't just an inner tube; it's your gateway to spending more time riding and less time fixing flats, whether you're conquering Gold Coast trails or navigating demanding urban environments with complete confidence.

Why Choose the 20 x 4 Inner Tube?

Premium Rubber Material - Superior construction for maximum durability and performance
Ultra-Durable Design - Built to withstand the toughest riding conditions
Easy Installation - Simple setup gets you back on the road quickly
Wear Resistance - Anti-aging properties for extended service life
Adventure Ready - Perfect for demanding electric bike applications


Complete Performance Specifications

Material & Construction

  • Material: Premium rubber construction for superior durability and performance
  • Quality Grade: Ultra-durable design built for demanding electric bike applications
  • Rubber Compound: Advanced rubber formulation provides optimal strength and flexibility
  • Manufacturing: Professional-grade construction meets demanding performance requirements
  • Quality Standards: Premium materials ensure reliable long-term performance
  • Professional Grade: Reliable construction for serious riding applications

Durability Features

  • Ultra-Durable Design: Built to withstand the toughest riding conditions and environments
  • Wear Resistance: Advanced rubber compound resists wear and puncture damage
  • Anti-Aging Properties: Superior materials resist degradation from UV exposure and weather
  • Puncture Protection: Robust construction provides enhanced puncture resistance
  • Temperature Stability: Performs reliably across Australia's varied temperature conditions
  • Long Service Life: Extended durability reduces replacement frequency and maintenance

Size & Compatibility

  • Size Specification: 20 x 4 dimensions for specific electric bike tyre applications
  • Electric Bike Optimised: Designed specifically for electric bike performance demands
  • Perfect Fit: Precise sizing ensures optimal performance and reliability
  • Compatibility: Suitable for 20-inch diameter, 4-inch width tyre applications
  • Professional Application: Ideal for fat-tyre electric bikes and adventure models
  • Installation Ready: Easy installation with standard tyre changing procedures

Perfect for Electric Bike Adventures

Adventure Ready: Designed specifically for electric bike applications where reliability and durability are essential for exploring challenging terrain and demanding conditions.

Fat-Tyre Applications: The 20 x 4 sizing is perfect for fat-tyre electric bikes that tackle varied terrain from beach sand to urban streets with confidence.

Performance Demands: Built to handle the increased weight and power of electric bikes whilst providing reliable performance across varied riding conditions.

Exploration Freedom: Ultra-durable construction gives you the confidence to explore without worry about punctures or tube failures during adventures.


Compatible with Adventure E-Bikes

Fat-Tyre Electric Bikes:

  • Perfect for 20-inch fat-tyre electric bike models requiring 4-inch width tubes
  • Ideal for beach cruising, trail riding, and all-terrain adventure applications
  • Superior durability handles the demanding conditions of fat-tyre riding

Adventure Models:

  • Excellent for electric bikes designed for off-road and trail adventures
  • Robust construction withstands the challenges of varied terrain and conditions
  • Reliable performance for remote riding where tube failure isn't an option

Urban Fat-Tyres:

  • Great for urban electric bikes with fat-tyre styling and comfort
  • Durable construction handles city riding demands and varied road surfaces
  • Professional quality for daily transport and commuting applications

Specialty Applications:

  • Perfect for custom electric bike builds requiring 20 x 4 tube specifications
  • Suitable for cargo bikes and specialty electric bike applications
  • Professional quality for demanding commercial and recreational use

Premium Rubber Superior Construction

Advanced Rubber Compound: Premium rubber material provides the optimal balance of strength, flexibility, and durability for demanding electric bike applications.

Ultra-Durable Performance: Superior construction withstands the toughest conditions including sharp objects, rough terrain, and demanding riding environments.

Professional Quality: Premium materials ensure consistent performance and reliability that meets the demanding requirements of serious electric bike riding.

Australian Conditions Ready: Built to handle Australia's varied conditions from coastal humidity to inland heat with reliable performance.


Wear Resistance & Anti-Aging Properties

Extended Service Life: Advanced anti-aging properties resist degradation from UV exposure, ozone, and weather conditions, significantly extending tube life.

Wear Resistance: Superior rubber compound resists wear from friction, flexing, and the demanding conditions of electric bike applications.

Weather Durability: Anti-aging properties maintain tube integrity and performance despite exposure to Australia's intense sun and varied weather.

Long-Term Reliability: Advanced materials ensure consistent performance over extended periods, reducing replacement frequency and maintenance costs.


What's Included

  • 20 x 4 Inner Tube with premium rubber construction
  • Ultra-durable design for demanding electric bike applications
  • Wear resistance and anti-aging properties for extended service life
  • Easy installation compatibility with standard tyre changing procedures
  • Professional-grade construction for reliable adventure performance
  • Complete installation guide with setup tips and maintenance advice
  • Quality guarantee for construction, durability, and performance

Customer Adventure Stories

"The 20 x 4 tube transformed my fat-tyre e-bike's reliability. The premium rubber construction is obvious and installation was straightforward. Perfect for my beach and trail adventures!" - Sarah M., Gold Coast

"Love the ultra-durable performance on my adventure e-bike. The wear resistance is excellent and I haven't had a single puncture since installation. Great quality for demanding riding." - Mark T., Byron Bay

"Perfect for my urban fat-tyre commuter. The anti-aging properties give me confidence for long-term use and the easy installation saved time and hassle. Professional quality." - Emma K., Brisbane


Easy Installation Process

Simple Setup Procedure:

  1. Remove the wheel and deflate the existing tube completely
  2. Carefully remove one side of the tyre from the rim
  3. Remove the old tube and inspect the tyre for debris or damage
  4. Insert the new 20 x 4 tube and inflate slightly for positioning
  5. Reinstall the tyre, inflate to proper pressure, and test for proper seating

Hassle-Free Experience: Easy installation design means you spend less time on maintenance and more time enjoying reliable riding performance.

Professional Support: While installation is straightforward, expert guidance available to ensure optimal setup and performance for your specific electric bike.


Performance Applications

Adventure Riding:

  • Ultra-durable construction perfect for challenging trail and off-road conditions
  • Puncture resistance essential for remote riding where reliability matters
  • Superior performance for demanding terrain and varied riding environments
  • Professional quality ensures dependability during extended adventures

Beach & Coastal Riding:

  • Premium rubber handles sand, salt air, and coastal riding conditions
  • Fat-tyre applications perfect for beach cruising and coastal pathway exploration
  • Weather resistance handles coastal humidity and temperature variations
  • Reliable performance for the relaxed coastal lifestyle

Urban Fat-Tyre Commuting:

  • Durable construction handles city riding demands and varied road surfaces
  • Professional quality suitable for daily transport and frequent use
  • Wear resistance perfect for regular commuting and urban environments
  • Easy installation minimises downtime for busy commuting schedules

All-Terrain Exploration:

  • Robust construction withstands varied terrain from smooth paths to rough trails
  • Ultra-durable design provides confidence for exploring new routes and areas
  • Superior materials handle the demanding conditions of all-terrain riding
  • Professional reliability for serious exploration and adventure applications

Investment in Adventure Reliability

$35 - Premium 20 x 4 inner tube with ultra-durable construction

✅ Premium rubber material for superior durability and performance
✅ Ultra-durable design built to withstand the toughest riding conditions
✅ Easy installation for quick setup and minimal maintenance downtime
✅ Wear resistance and anti-aging properties for extended service life
✅ Adventure ready for demanding electric bike applications

Upgrade your tube reliability today - Chat with our tube specialists or call 07 5518 3478


Care & Maintenance

Maintaining Peak Performance:

  • Regular pressure checks to ensure optimal inflation and performance
  • Periodic inspection for wear, damage, or degradation signs
  • Keep spare tube available for emergency repairs during adventures
  • Monitor tyre condition to prevent tube damage from worn or damaged tyres

Longevity Tips:

  • Maintain proper inflation pressure to prevent excessive flexing and wear
  • Regular tyre inspection prevents debris damage to the tube
  • Avoid over-inflation that could stress the tube beyond design limits
  • Professional installation advice available for optimal performance

Professional Quality Assurance

Performance Standards: The 20 x 4 inner tube meets professional quality standards for materials, construction, and performance in demanding electric bike applications.

Durability Testing: Extensive testing ensures the tube maintains reliable performance and puncture resistance under Australian riding conditions.

Reliability Guarantee: Full assurance of ultra-durable performance and extended service life for all adventure and electric bike applications.

Expert Support: Professional guidance available for installation, maintenance, and performance optimisation throughout the tube's service life.


Why Quality Inner Tubes Matter

Reliability Foundation: Inner tubes are critical for reliable riding performance, especially important for electric bikes and adventure applications where failure isn't acceptable.

Adventure Confidence: Quality tubes provide the reliability needed for exploring remote areas and challenging terrain with confidence.

Performance Enhancement: Premium tubes maintain optimal tyre performance and handling characteristics essential for electric bike applications.

Cost Effectiveness: Ultra-durable construction provides better value through extended service life and reduced replacement frequency.


Technical Specifications

Size Precision: 20 x 4 dimensions provide perfect fit for specific electric bike tyre applications requiring this sizing.

Electric Bike Optimised: Designed to handle the increased demands of electric bike applications including higher speeds and weights.

Professional Standards: Meets quality standards for both recreational and serious cycling applications with reliable performance.

Expert Assessment: Contact our tube specialists for compatibility verification and optimal installation guidance for your specific electric bike.


Bundle Enhancement Options

Complete Tube Kit:

  • 20 x 4 inner tube + spare tube + tyre levers + patch kit
  • Comprehensive tube maintenance solution for adventure readiness
  • Perfect for riders wanting complete puncture repair capability

Adventure Maintenance Package:

  • Inner tube + maintenance tools + portable pump + repair supplies
  • Complete adventure maintenance kit for extended riding confidence
  • Ideal for serious adventure riders who prioritise self-sufficiency

Ultra-Durable Design Benefits

Puncture Resistance: Advanced rubber compound and construction provide superior resistance to punctures from thorns, glass, and debris.

Flexibility Maintenance: Premium materials maintain optimal flexibility across temperature ranges whilst providing robust puncture protection.

Stress Distribution: Professional construction distributes stress evenly, preventing weak points that could lead to premature failure.

Performance Consistency: Ultra-durable design ensures consistent performance characteristics throughout the tube's extended service life.


Adventure Freedom Advantage

Exploration Confidence: Ultra-durable construction provides the reliability needed for exploring challenging terrain and remote areas with confidence.

Reduced Maintenance: Extended service life and puncture resistance reduce the frequency of tube changes and maintenance interruptions.

Performance Reliability: Consistent performance ensures your electric bike maintains optimal handling and ride characteristics during adventures.

Peace of Mind: Quality construction provides confidence that your tube will perform reliably when you need it most during demanding rides.


Premium reliability. Ultra-durable performance. Adventure ready. 20 x 4 Inner Tube - because your electric bike adventures deserve the ultimate combination of puncture resistance, extended service life, and professional-quality construction that keeps you exploring with complete confidence.

Ride Free, Explore More

The Coolest E-Bike Experience, Born on the Gold Coast Queensland Australia.