Eclipse Performance Road Classic Tube — 622 × 20/25 mm Distribution The 40 mm version uses

The 40 mm version uses a valve hole adapter for standard Brompton rims

removable core Made in Germany Recyclable 100% Weight by size and valve length:

This tube comes with the correct adapter — the valve seats properly without modification to your rim or tyre

Anyone using TPU tubes who wants accurate

lightweight TPU tube for MTB and trail riding

Eclipse Performance Road Classic Tube — 622 × 20/25 mm Distribution The 40 mm version usesA lightweight TPU road tube built for narrow race rubber. Made in Germany with a patented all aluminum valve and a patented end to end welding process. Why it works From 27 g. Roughly 70% less than a butyl road tube. Less rotational weight where it matters most pickups, attacks, and the last 200 m. Holds pressure at race PSI. TPU doesn't creep at high pressure the way butyl does. Stable, consistent feel through long efforts fewer top ups, no slow sag.