Eclipse Performance Custom Tube — Narrow 16–32" × 23/35 mm Pro Road Wider tubes have more material

Wider tubes have more material to distribute evenly — starting flat prevents bunching

taking the wheel off

all-aluminum Valve hole adapter Deep rim 50 mm Presta

Covers slick racing tyres and treaded race rubber in the standard UCI BMX racing format (20" × 1

Recumbent bikes and velomobiles with non-standard wheel sizes

Eclipse Performance Custom Tube — Narrow 16–32" × 23/35 mm Pro Road Wider tubes have more materialMost inner tubes are made for standard wheel sizes. Bromptons, Birdy bikes, recumbents, tandem trailers, junior road bikes, and active wheelchairs aren't standard. This tube is. The Eclipse Performance Custom covers narrow profile tires across wheel diameters from 16 to 32 inches sizes that are either impossible to find in TPU elsewhere or only available in heavy butyl. Specify your exact tire diameter at checkout and we'll match it. Why it works From