Aether - World's lightest carbon tubeless valve
Sold as set (2 valves)
Do you like this product? Share it with your friends!
absoluteBLACK tubeless valves take a completely different approach to design - replacing traditional aluminium with a carbon fiber reinforced polymer construction to achieve extreme weight reduction without compromising everyday usability.
At just 2.6 grams per valve (including 0.6g cap), these are the lightest tubeless valves available. Not marginally lighter—meaningfully lighter. All without changing how you install, inflate, or maintain your setup.
|
Mass (+/-0.2g): |
18–30mm rim depth: 2.6g & 30–50mm rim depth: 3.1g per valve |
|
Color |
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 |
Carbon fiber reinforced. Not machined
Instead of CNC-machined aluminium, we use carbon fiber reinforced polymer 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.
A different valve architecture
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 1920'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
While many modern valves focus on high-flow MTB designs, often adding bulk and cost, we prioritized what matters for road and 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.
Designed in UK, manufactured in EU. Valves design protected by patents No 015094911-0001 & 015094911-0002 & 015094911-0003 and construction patent pending.