Eclipse Ultra Road Tube — 622 × 20/25 mm (19.5 g) valve length:70mm - 21g 50 mm (with thread +

50 mm (with thread + nut) — mid-depth rims

most recumbents

Designed to live in a jersey pocket

5 g 70 mm 21 g Which valve length do I need

Wider tires in non-standard wheel sizes — cargo bikes

Eclipse Ultra Road Tube — 622 × 20/25 mm (19.5 g) valve length:70mm - 21g 50 mm (with thread +The lightest road tube Eclipse makes 19. 5 g for a full TPU inner tube with an all aluminum valve. Built for race day and rim brake disc race wheels in 2025 mm tires. Made in Germany with a patented all aluminum valve and a patented end to end welding process. Why it works 19. 5 g (40 mm valve). 21 g (70 mm). Lighter than most latex tubes. Roughly an 80%+ reduction vs a butyl road tube. The saving is rotational you'll feel it the first time you stand