Aether, Carbon Ultra-Light Tubeless Valves
Description
Warranty
ETHER takes a completely different approach to tubeless valve design by removing the traditional valve core entirely. No tiny core. No tiny airflow path. Nothing to clog. Its simplified two-part architecture creates a more direct airflow path for easier inflation, improved tubeless setup and reduced maintenance over time.
Instead of CNC-machined aluminium, we use long carbon fiber-polymer composite injection. This allows for significantly lower density (around half that of aluminium) and greater design freedom for optimized internal geometry. The result is a valve that is not only lighter, but engineered differently from the ground up.
To eliminate unnecessary mass, we moved away from the traditional removable Presta core. Our design uses a bottom-sealing mechanism, inspired by early valve concepts from 1915's, where the sealing interface sits at the base rather than the top. This simplifies the internal structure and creates a more direct air path—without the typical restrictions of standard Presta cores. Sealing elements remain rubber to ensure reliable, airtight performance.
Built for road & gravel - Low weight, Compact form and Clean integration with modern rims. Reducing rotating mass at the wheel may seem like a small detail—but it’s exactly where weight matters most.
AETHER was engineered around a simplified internal structure with fewer interfaces and fewer areas where sealant residue can accumulate over time. By eliminating the traditional valve core entirely, AETHER creates a more direct airflow path while removing one of the most common sources of clogging and maintenance in modern tubeless systems.
The result is a valve designed to stay clear, inflate consistently and remain easy to live with long term.
Mass (+/-0.2g): 18–30mm rim depth: 2.6g & 30–55mm rim depth: 3.1g per valve
Colour: Carbon
Compatibility: All rims designed for presta valves. On pump side: All presta compatible pumps
Materials: Carbon fiber reinforced polymer and rubber o-rings
In the box: Two valves with corresponding caps and nuts
And MTB? AETHER remains fully functional on MTB setups and retains the same advantages in simplified construction, direct airflow and reduced clogging. However, the performance benefit of reducing rotating wheel mass is naturally more noticeable on lightweight road and gravel wheel systems than on heavier MTB setups.
Designed in UK, manufactured in EU.
Instead of CNC-machined aluminium, we use long carbon fiber-polymer composite injection. This allows for significantly lower density (around half that of aluminium) and greater design freedom for optimized internal geometry. The result is a valve that is not only lighter, but engineered differently from the ground up.
To eliminate unnecessary mass, we moved away from the traditional removable Presta core. Our design uses a bottom-sealing mechanism, inspired by early valve concepts from 1915's, where the sealing interface sits at the base rather than the top. This simplifies the internal structure and creates a more direct air path—without the typical restrictions of standard Presta cores. Sealing elements remain rubber to ensure reliable, airtight performance.
Built for road & gravel - Low weight, Compact form and Clean integration with modern rims. Reducing rotating mass at the wheel may seem like a small detail—but it’s exactly where weight matters most.
AETHER was engineered around a simplified internal structure with fewer interfaces and fewer areas where sealant residue can accumulate over time. By eliminating the traditional valve core entirely, AETHER creates a more direct airflow path while removing one of the most common sources of clogging and maintenance in modern tubeless systems.
The result is a valve designed to stay clear, inflate consistently and remain easy to live with long term.
Mass (+/-0.2g): 18–30mm rim depth: 2.6g & 30–55mm rim depth: 3.1g per valve
Colour: Carbon
Compatibility: All rims designed for presta valves. On pump side: All presta compatible pumps
Materials: Carbon fiber reinforced polymer and rubber o-rings
In the box: Two valves with corresponding caps and nuts
And MTB? AETHER remains fully functional on MTB setups and retains the same advantages in simplified construction, direct airflow and reduced clogging. However, the performance benefit of reducing rotating wheel mass is naturally more noticeable on lightweight road and gravel wheel systems than on heavier MTB setups.
Designed in UK, manufactured in EU.
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