Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad You stay rolling on rocks

You stay rolling on rocks

Eclipse pioneered TPU inner tubes in 2011 and has built dedicated products for the sizes the market overlooks

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

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

Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad You stay rolling on rocksAn 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