Eclipse Performance Custom Tube — Wide 16–32" × 30/45 mm valve length:60mm The patented all-aluminum valve and

The patented all-aluminum valve and patented end-to-end welding process address the two most common TPU failure points

360 s runtime Capacity per charge 3–5 tires (0 → 150 PSI) Valve compatibility Presta

and Brompton Electric — as well as previous Brompton M

Riders who've squeezed everything else out of their setup and want the tube to match

Eclipse Performance Custom Tube — Wide 16–32" × 30/45 mm valve length:60mm The patented all-aluminum valve andWider tires in non standard wheel sizes cargo bikes, wide tired folders, recumbents with a more relaxed profile, and city bikes that don't conform to 700c. The Eclipse Performance Custom Wide covers the 3045 mm tire width range across the same 1632 inch diameter span as its narrower sibling, built for setups where you need something heavier duty than a road tube but lighter than anything butyl offers in this size. Why it works From 30 g across a wide