Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad and digging out a spare

and digging out a spare

If the core ever works loose

typically 30–45 mm

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

Eclipse Ultra Road Endurance Tube — 622 × 23/35 mm offroad and digging out a spareAn 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