A reliable, lightweight TPU road tube built for everyday mileage. Made in Germany with a patented all-aluminum valve and a patented end-to-end welding process — two things that exist specifically to eliminate the failure points common in other TPU tubes.
Why it works
35–40 g, depending on valve length. That's roughly 70% less than a standard butyl tube — a difference you feel in acceleration and in your jersey pocket when you're carrying a spare.
Holds pressure like it means it. TPU doesn't creep at high PSI the way butyl does. You get a stable, consistent ride feel on long efforts — less frequent top-ups, no gradual sag mid-ride. No sealant, no valves clogging, no Tuesday morning ritual.
Patented all-aluminum valve with removable core. If the valve core ever works loose or leaks — it takes 60 seconds and a valve tool to fix. No new tube needed. The valve is also compatible with standard extensions for deep-section rims.
End-to-end welded, not spliced. Eclipse's patented welding process eliminates the seam junction — historically the most common failure point in TPU tubes. Backed by tight in-house QC before anything ships.
Packs to nothing. Smaller than a butyl spare. Fits any jersey pocket, under-saddle bag, or bento box without rearranging everything else.
100% recyclable. When it finally wears out, it doesn't go to landfill.
Specs
|
|
| Size (ETRTO) |
622 × 23–35 mm |
| Material |
TPU (thermoplastic polyurethane) |
| Valve |
Presta, all-aluminum, removable core |
| Made in |
Germany |
| Recyclable |
100% |
Weight by valve length:
| Valve |
Weight |
| 40 mm |
35 g |
| 50 mm |
36 g |
| 60 mm |
37 g |
| 70 mm |
38 g |
| 80 mm |
40 g |
Which valve length do I need?
40–50 mm — standard rims with a shallow rim bed (under 30 mm deep). Most training wheels and entry-level carbon rims.
60 mm — mid-depth rims, typically 30–45 mm.
70–80 mm — deep-section and aero wheels, typically 45 mm and above. If your rim depth is close to a boundary, go longer — you can always use less, you can't add what isn't there.
Best for
- Road riders who want a durable, lightweight tube for daily training and long rides
- Anyone switching from tubeless who wants the weight benefit without the maintenance
- Riders with deep-section wheels who need a longer valve — available up to 80 mm
- Anyone who's had a TPU tube fail at the valve or seam and wants one that's actually engineered differently
Installing a TPU tube — the short version
TPU installs differently from butyl. Four things matter:
Start with zero air. Insert the valve completely flat — no pre-inflation. This is the single most common installation mistake.
No tire levers on the second bead. Mount by hand. Levers pinch TPU in a way they don't pinch butyl.
Soft-inflate to 0.3 bar (5 psi) first. Before closing the second bead fully, give it a small amount of air to seat the tube without folds or twists.
Inflate in steps. Go up in 1 bar (14 psi) increments, not all at once. Before you hit full pressure, squeeze the sidewalls around the whole wheel to check the tube isn't peeking out anywhere.
That's it. Once it's seated, it behaves like any other tube.
What makes Eclipse different
Eclipse pioneered TPU inner tubes in 2011 — before the category existed commercially. The patented all-aluminum valve and patented end-to-end welding process aren't marketing language; they're engineering decisions made to solve real failure modes. Every tube is QC-checked before it ships.
