Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad Race wheels swapped onto a

Race wheels swapped onto a non-race tube setup

Eliminates the seam junction — the most common failure point in TPU tubes — and is backed by internal QC before anything leaves the building

fewer roadside repairs

TPU's high elongation absorbs trail debris in a way butyl can't

If you run deep-section or aero wheels and don't want to buy the extension separately

Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad Race wheels swapped onto aAn ultralight TPU endurance tube 27 g for a full inner tube that fits the same 2335 mm tires as a daily training setup. Made in Germany with a patented all aluminum valve and a patented end to end welding process. Why it works 27 g (50 mm). 29 g (70 mm). Roughly 80% lighter than a butyl endurance tube and noticeably lighter than the standard Performance Endurance. Race day weight in a wider tire size range. Thinner wall, same engineering. Ultra uses a