Eclipse Off-Road Inner Tube | 29" - ETRTO 622mm (700C) | 40-65 mm

Eclipse Performance Off-Road - Inner Tube with Thread and Nut

A puncture-resistant, lightweight TPU inner tube for mtb and trail use. Made in Germany with a patented aluminum valve and a patented welding process along the entire length of the inner tube—two features specifically designed to eliminate the typical weak points of other TPU inner tubes.

Features of the Eclipse Off-Road Bike Tube - Includes thread and nut

59–65 g, depending on size and valve length.

About two-thirds lighter than a butyl mtb inner tube. Because the weight savings are rotational, the effect on acceleration, climbing performance, and steering precision is disproportionately large.

True puncture protection.

TPU’s high elasticity absorbs trail debris in a way that butyl cannot. You’ll roll right over rocks, roots, and the small sharp objects that puncture conventional inner tubes.

Pressure-stable.

Less flex than classic butyl tubes. Consistent ride feel over long descents, not just for the first kilometer.

Patented all-aluminum valve with removable core.

If the core ever loosens or starts leaking, you can replace it in 60 seconds with a valve tool. No new inner tube needed. Compatible with standard valve stems.

Fully welded, not glued.

Eclipse’s patented welding process eliminates the seam—historically the most common weak point in TPU inner tubes. Backed by strict in-house quality controls before anything is shipped.

Packs down extremely small.

Smaller than a butyl spare tube. Fits in a waist pack, frame bag, or jersey pocket without having to rearrange everything else.

100% recyclable.

When it finally wears out, it won’t end up in a landfill.