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Cyclami Superlight TPU Bicycle Inner Tube With Removable Air Valve Cor – Sports Engineer

Rated 4.8 based on +2,847 Reviews

Cyclami Superlight TPU Bicycle Inner Tube With Removable Air Valve Core

£12.99
£14.99
Sale 13% off

Stop dealing with heavy inner tubes, frustrating punctures, and unreliable air retention that disrupt your ride. These advanced TPU inner tubes deliver a lightweight, puncture-resistant, and heat-stable solution, reducing blowout risk while improving efficiency and durability. 

  • At just 38g, you'll forget it's even there, until you need it

  • 80% smaller than rubber tubes. Total peace of mind.

  • Stays inflated for a month. Spend less time pumping, more time riding.

  • Built to handle summer tarmac, not melt on it.

30-Day Money-Back Guarantee

Fast Shipping

Stop getting caught out by a flat you could have prevented.

Due to high demand, limited quantities available

93% SOLD

Sport's Engineers 30-Day Risk-Free Guarantee

Try it risk-free. If you are not happy within 30 days, return it for a full refund - no questions asked.

How is a TPU inner tube different from a regular rubber one?

TPU (thermoplastic polyurethane) is a completely different material to traditional butyl rubber. It's 70% lighter, holds air up to 4x longer, and packs down to a fraction of the size. Think of it as the upgrade your wheels didn't know they needed.

Will it fit my bike?

The Cyclami TPU tube fits 700C / 28" wheels in widths from 18C to 32C, covering the vast majority of road, gravel, and commuter bikes. If you're running a standard road setup, it almost certainly fits.

Is it harder to install than a normal tube?

Not at all. It installs exactly like a standard inner tube. The only difference is it's so light and compact you might do a double-take wondering if you've got the right thing.

What happens if I get a puncture?

Same as any tube, patch it or replace it. The difference is you're far less likely to need to. The TPU material reduces blowout rates by 40%, and because the spare is so compact, carrying a backup in your jersey pocket is effortless.

30-Day Money-Back Guarantee

Not convinced? Try it on your next ride. If you don't notice the difference in weight, air retention, or ride feel, send it back within 30 days for a full refund. No questions asked.

Tom, 34

I was sceptical, felt too light to be real. Then I did a 90km race and didn't pump up once beforehand. Rolled the whole thing on the same pressure from the week before. Converted for life.

100% leak tested

holds air for a month

replaceable valve core

heat resistant material

70% lighter than butyl

How It

Actually Works

TPU isn't just a lighter rubber, it's a fundamentally better material. Here's why riders who switch rarely go back.

Ultra-Low Weight

At 38g, the tube is so light it barely registers on your bike. Less rotational mass means every pedal stroke goes further and carrying a spare no longer feels like a penalty.

70% lighter than butyl

Faster acceleration

Superior Air Retention

TPU's molecular structure is far less permeable than rubber. Inflate once and it stays where you put it, pressure drops just 10–15 psi over an entire month versus weekly top-ups with butyl.

40% lower gas permeability

Fewer pump stops

Simple Steps to

Get Rolling Faster

From flat tyre to back on the road in under 5 minutes.

Hear From Daniel James, Cycling Coach

Founder of Road Cycling Dvelopment Programme

Title

I've been racing on TPU tubes for two seasons now. The weight saving is real, but what actually sold me is the air retention, I pump up before a race and don't think about it again. When a teammate flatted at 60km/h last summer, the TPU held long enough for him to control the bike. That's not something butyl gives you.

— Daniel James | Certified, 10+ years cyclist and coach

Stop Wasting Rides On Tubes That
Let You Down

Butyl rubber was the standard for decades but it was never the best option. Heavy, permeable, and bulky, it's the compromise every cyclist has quietly accepted. TPU changes that. Same installation, dramatically better performance.

Cyclami TPU

Standard
Butyl Tube

  • 70% lighter than butyl

  • Holds pressure for a month

  • 40% fewer punctures

  • Fits in a jersey pocket

  • Replaceable valve core

  • Heat resistant material

Rated 4.8/5 based on 50+ Total Ratings

Customers Love Us 

From inconsistent to committed - see how this transformed their workouts.

Frequently Asked Questions

Is TPU actually better than butyl rubber?

Yes! Across every metric that matters to a cyclist. It's 70% lighter, holds air 4x longer, resists punctures better, and packs down to a fraction of the size. The only thing butyl has going for it is familiarity.

Will it fit my road or gravel bike?

It fits 700C / 28" wheels in widths from 18C to 32C — covering road, gravel, and most commuter setups. Check the size chart if you're unsure; there's a good chance it's compatible.

How long does it take to install?

Under 5 minutes, same as any standard tube. The only adjustment is giving it a tiny puff of air before installing to help it hold shape. After that it's identical to what you already know.

Can I patch it if I get a puncture?

Yes. Standard TPU-compatible patches work just fine. That said, the material is significantly more puncture-resistant than butyl, so you're much less likely to need one in the first place.

What valve length should I choose?

45mm works for standard rims, 60mm suits mid-depth rims, and 80mm is for deep-section aero wheels. If you're between sizes, go longer — you can always use a valve extender, but you can't add length that isn't there.

How often do I need to top up the pressure?

Far less than with rubber. TPU loses only 10–15 psi over an entire month. Standard butyl tubes typically lose 5–20 psi per week. Most riders find they top up once every few weeks rather than before every ride.

What is the removable valve core for?

If the valve core gets damaged, you can replace just that part rather than the whole tube. It also allows sealant to be injected for added puncture protection if you ride in particularly harsh conditions.

Is it durable enough for regular use?

Absolutely. TPU is heat-resistant, puncture-resistant, and every tube is individually leak tested before it leaves the factory. It's built for daily training rides, not just racing.

Sports Engineer's 30-Day Risk-Free 

Guarantee

We're so confident in the quality of our product that we offer a risk-free guarantee. If you’re not seeing the results you want within 30 days, simply return it for a full refund no questions asked.

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Excellent 4.8 | 50+ reviews

Cyclami Superlight TPU Bicycle Inner Tube With Removable Air Valve Core

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