Cyclists today are spoilt for choice when it comes to optimising their set-up for speed, comfort and reliability. Two technologies stand out as frontrunners: tubeless systems and thermoplastic polyurethane (TPU) inner tubes. Both are designed to reduce flats, improve efficiency and enhance the ride, but they do so in very different ways.
At Eclipse TPU, we know the value of innovation. We invented the first TPU inner tubes back in 2011, a breakthrough that has since been protected by multiple international patents. Over the years, we have continued to refine our tubes into three distinctive ranges: Performance, Ultra and GT. Each is engineered to offer riders exceptional weight savings, consistent durability and full recyclability.
This article compares TPU inner tubes with tubeless systems across performance, reliability, cost, sustainability and rider suitability. By the end, you will have a clear view of which system fits your style of cycling best in 2025 and beyond.
Key Takeaways
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TPU inner tubes are lighter, with less rotational mass, while tubeless shines with low-pressure grip and resistance to pinch punctures.
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Eclipse TPU Performance, Ultra and GT tubes offer compatibility with many rim depths thanks to alloy valves ranging from 40 to 80 mm.
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Repairing a TPU tube is straightforward using Eclipse’s patch kits and TPU Tube Sealant, making it low-maintenance.
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Tubeless systems require more set-up and regular sealant upkeep, but perform very well off-road or on rough terrain.
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Eclipse TPU tubes are fully recyclable and benefit from carbon-neutral shipping, aligning with sustainable cycling goals.
Did you know that some Eclipse TPU tube models save over 50 g per wheel compared with standard butyl inner tubes?
Understanding the Basics

What are TPU inner tubes?
TPU is a modern material that combines elasticity with resilience. Unlike traditional butyl or latex, TPU can be manufactured to extremely thin dimensions without sacrificing toughness. This makes Eclipse TPU tubes significantly lighter than standard options, while also being fully recyclable.
Our ranges are designed for different riding styles:
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Performance: balanced durability and low weight.
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Ultra: the lightest option, ideal for racers.
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GT (Gran Turismo): engineered for endurance and comfort.
Each tube is paired with precision-engineered alloy valves in lengths from 40 mm up to 80 mm, ensuring compatibility with a wide variety of rim depths.
What is a tubeless system?
Tubeless technology eliminates the inner tube altogether. Instead, an airtight seal is created between the tyre and rim, with liquid sealant inside to fill small punctures. Riders benefit from running lower pressures, especially useful for gravel and off-road terrain.
Key factors to consider
Both systems are judged on the following:
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Weight and rotational mass.
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Rolling resistance.
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Ease of maintenance.
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Durability and puncture resistance.
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Compatibility with your existing wheels and tyres.
Performance: Weight, Speed and Feel

Weight and rotational mass
Rotational weight is critical for performance. Every gram saved at the wheel makes acceleration more efficient. Eclipse TPU tubes set new benchmarks here:
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Product Range |
Size Example |
Weight (40 mm valve) |
|
Ultra Road |
622 × 25–35 mm |
~29 g |
|
Performance Road |
622 × 23–35 mm |
~35 g |
|
GT Gravel |
622 × 35–50 mm |
~45 g |
By comparison, a standard butyl tube often weighs over 100 g. Tubeless tyres can reduce some tube weight but the additional bead strength and sealant often offset savings.
Rolling resistance
Rolling resistance directly impacts speed. Tubeless systems allow lower pressures, giving an advantage on rough or loose surfaces. Eclipse TPU tubes, thanks to their thin yet strong walls, offer excellent rolling efficiency at recommended road pressures, making them highly competitive against tubeless on smooth tarmac.
Ride feel
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TPU tubes: deliver a lively, precise feel on the road. Their elasticity reduces energy loss and gives predictable handling.
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Tubeless systems: excel when run at lower pressures, offering improved traction and comfort on gravel and trails.
Pressure range and stability
Tubeless systems shine below 50 psi, where reduced risk of pinch flats makes them attractive for gravel and MTB riders. TPU tubes are optimised for the higher pressures of road cycling, while still being versatile enough for gravel and off-road use.
Reliability and Maintenance

Puncture resistance
Every rider dreads the sound of air escaping mid-ride. Tubeless systems use liquid sealant to automatically plug small holes. TPU tubes rely on material resilience, resisting cuts and abrasions more effectively than butyl.
Repairing TPU tubes
One of the biggest myths about TPU is that it cannot be repaired. In reality, Eclipse TPU tubes can be patched quickly with our dedicated repair kits. Our TPU Tube Sealant can also be added to the tube, sealing minor punctures from the inside. This makes TPU a practical choice for riders who want both light weight and reassurance.
Repairing tubeless systems
Tubeless punctures that seal automatically are a great advantage. However, larger cuts often require plugging, and in some cases, inserting a spare tube. Sealant also dries out over time, requiring replenishment every few months.
Air retention
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TPU tubes: known for holding air well when properly installed. Adding Eclipse TPU Tube Sealant further improves airtightness.
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Tubeless: generally retain air if set up correctly, but can lose pressure if the bead is imperfect or if sealant is low.
Maintenance over time
TPU tubes require minimal attention beyond standard inflation checks. Tubeless systems, while effective, need routine sealant checks and can be messy to service. For riders prioritising simplicity, TPU offers a clear advantage.
Cost and Practicality
Up-front costs
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Eclipse TPU tubes retail from approximately €19.95 to €24.95, depending on range and size.
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A full tubeless conversion often requires new tyres, sealant, tubeless valves and rim tape, adding significant cost if your wheels are not already tubeless-ready.
Ongoing costs
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TPU: occasional patches or a small amount of sealant.
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Tubeless: sealant replacement every few months, plugs, and potentially earlier tyre replacement.
Ease of installation
Fitting a TPU tube is familiar and quick. Tubeless set-ups can be challenging, often requiring a high-pressure air source to seat the tyre bead. For riders without access to specialist tools, TPU saves time and frustration.
Compatibility
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TPU tubes: work with virtually all clincher rims and tyres.
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Tubeless: requires tubeless-ready rims and tyres for safe performance.
Sustainability and Materials

Cyclists are increasingly aware of their environmental footprint. Eclipse TPU tubes are fully recyclable and represent a step towards circular cycling products. According to our sustainability initiatives:
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100% recyclable material used in every tube.
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Carbon-neutral shipping to reduce delivery emissions.
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Recycling programmes being developed for end-of-life tubes.
Tubeless systems reduce tube waste but introduce other environmental considerations such as the disposal of sealant and thicker tyre casings. TPU’s lightweight construction and recyclability give it a strong case for riders prioritising sustainability.
Which Setup Suits Which Rider?

Road racers and climbers
Eclipse Ultra tubes deliver unmatched weight savings and predictable handling, making them ideal for competitive road cyclists.
Gravel riders
Tubeless offers the benefit of lower pressures and self-sealing punctures, but Eclipse GT tubes are a compelling option for those who prefer a simpler set-up with the flexibility of carrying spares.
Mountain bikers
Tubeless dominates on trails due to reduced pinch flats. However, carrying a lightweight Eclipse TPU spare remains a smart choice.
Commuters and urban cyclists
For daily use, TPU tubes provide a reliable, low-maintenance solution with the bonus of recyclability.
Endurance and touring cyclists
The durability of TPU, combined with the ability to patch and repair, makes Eclipse GT tubes well suited to long-distance riders who want peace of mind without complex maintenance.
Hybrid Strategies and Spares
Many cyclists find the best solution is a hybrid approach. Running tubeless tyres for everyday riding while carrying an Eclipse TPU spare ensures that even a large puncture can be managed quickly on the road. Thanks to their compact size and featherweight design, Eclipse TPU tubes fit easily into a saddle bag or jersey pocket.
Adding Eclipse TPU Tube Sealant to a tube gives you a combination of self-sealing protection and traditional tube reliability. This hybridisation means riders can benefit from the best of both worlds without compromise.
Decision Checklist
Ask yourself the following:
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Do I value the lowest possible weight? → Eclipse TPU.
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Do I ride frequently on gravel or rough terrain? → Tubeless.
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Do I want easy repairs and installation? → Eclipse TPU.
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Am I keen to minimise waste and recycle? → Eclipse TPU.
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Do I already own tubeless-ready wheels and tyres? → Tubeless may be worth it.
Conclusion: TPU vs Tubeless
Both tubeless systems and TPU inner tubes bring valuable benefits to cycling in 2025. Tubeless shines for low-pressure off-road performance, while Eclipse TPU delivers unmatched weight savings, simplicity and sustainability. As the inventor of TPU inner tubes, Eclipse continues to set the standard with Performance, Ultra and GT ranges that are fully recyclable, highly durable and engineered for speed.
Whichever option you choose, ensure it aligns with your riding style, maintenance preferences and sustainability goals.
To experience the benefits first-hand, explore the Eclipse TPU collection today.
Frequently Asked Questions
Can TPU tubes be used in tubeless-ready tyres?
Yes. Eclipse TPU tubes can be fitted inside tubeless-ready tyres just like a standard inner tube. The key factor is matching the correct tube size to the tyre width and rim depth.
What sealant should I use with TPU tubes?
We recommend our own Eclipse TPU Tube Sealant. It has been specially formulated to work with TPU material, supporting airtightness and sealing small punctures quickly. Standard tubeless sealants are not guaranteed to be compatible with TPU.
Are TPU tubes really recyclable?
Yes. All Eclipse TPU tubes are manufactured from 100% recyclable thermoplastic polyurethane. We are committed to sustainability and are developing recycling programmes to ensure used tubes can be responsibly reprocessed.
How do I repair a TPU tube?
TPU tubes can be repaired with our dedicated patch kits. Simply clean the puncture area, apply the patch, and the tube is ready to use again. This is a fast and reliable solution for extending the lifespan of your tube.
Do I need special rims to use TPU tubes?
No. Eclipse TPU tubes work with all standard clincher rims. Unlike tubeless systems, you do not need tubeless-ready rims, rim tape or special bead seating.
How long do TPU tubes last?
With proper installation and care, TPU tubes last significantly longer than butyl tubes. Factors such as tyre condition, riding environment and correct inflation will all influence lifespan.
Are TPU tubes suitable for all types of cycling?
Yes. Eclipse offers Performance, Ultra and GT tubes to suit road, gravel and off-road riding. Choose the right model based on your terrain and riding goals.
Further Reading
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The ultimate guide to bike tyre pressure (PSI): How correct tyre pressure boosts performance, comfort and safety across different ride types.
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Racing bicycle tyres – Influence on mechanical characteristics of tyres: Examines how pressure, tyre width and road surface affect rolling resistance and speed.
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Tubes vs. Tubeless: Which Set-up is Right for You? – WTB: Helps riders decide which system fits their terrain, ride goals and tool kit.