Available autumn 2025

City/Tour UltraProtect

24.95 €

Ultra Strong. Ultra Airtight.

650B–700C 50–65 mm 141 g AV40 mm

For touring and everyday cyclists seeking the best puncture protection.

Protection Level

Uncompromising combination of ultra-high puncture resistance and ultra-durability with maximum air retention and light weight.

Note: Suitable for disc and rim brakes.

Tire Width
50-65 mm
37-50 mm
Valve
SV42 mm
AV40 mm

Highlights

  • PUNCTURE PROTECTION

    Due to high elasticity and material strength, AERON/TPU Airtubes have extremely high puncture protection.

    Puncture safety is tested in the laboratory

  • BETTER PRICE-PERFORMANCE RATIO

    AERON/TPU Airtube setups are cheaper, lighter and easier to maintain compared to tubeless performance setups*. * accounting for all the components involved, such as the tire, valve, rim tape and sealant.

    Rear wheel of a road bike

  • HIGHER AIR RETENTION

    AERON/TPU Airtubes retain air significantly longer than butyl bicycle tubes.

    Bicycle tire is inflated

  • SUSTAINABILITY

    TPU is a pure material and can be 100 percent recycled into raw materials for the production of new TPU tubes. Significantly less water is required during production compared to the production of butyl bicycle tubes.

    Person holding several bicycle inner tubes

Details

Weight 141 g
Tire Width 50–65 mm
Valve AV
Weight Saving 51% compared to corresponding butyl tubes
Protection Level 6
Valve Shaft Material Polymer
Brake Type Rim Brake; Disc Brake
Valve Length 40 mm
Art.-No. 333 000 05
MSRP 24.95 €

CITY/TOUR Series

Developed for cyclists that want maximum reliability for day-to-day use. AERON/TPU Airtubes for City and Tour are optimized for puncture protection and durability. The reduction in rotational weight and low rolling resistance further improves performance and increases the fun factor on every commute, grocery run or extended tour.

City

AERON/TPU Core technology

Innovation in every detail

At AERON/TPU, we dedicate all our expertise and passion solely to the development and production of high-end TPU bicycle inner tubes. Our aim is to offer the best possible tube solution for every application.

Multi Layer Technology

AERON/TPU manufacturing technology allows multilayer construction within an Airtube.

Multi Layer

Micro Welding

AERON/TPU valve bases are mechanically heat bonded to endure demanding leak testing.

Micro Welding

Anti-Slip Surface

The specially designed AERON/TPU valve stems guarantee optimum pump head interface and retention.

Anti Slip Surface

Smart Quality Control

Every AERON/TPU Airtube is subjected to strict quality controls.

Quality Control

Heavy Duty Bond

AERON/TPU valve cores are permanently bonded to ensure reliable and long-lasting performance.

Heavy Duty Bond

Aluminum Valve Stem

High-end aluminum valve stem. Perfect combination of lightweight construction, durability and flawless finish.

Alu Valve Stem