Stan's NoTubes

ZTR Arc Rim

Think of these as the golden arches. While we recognize that there's not a hint of gold, and they're not likely to appear on a dollar menu, they could be the rim for which you've been looking. The Stan's No Tubes ZTR Arch Rim is an aggressive cross country rim which maximizes your tire's footprint, providing additional traction without a weight penalty. Finished in the standard black ano, the ZTR Arch rim tips the scales at a miniscule 420g (26 inch) or 470g (29 inch). It uses their internal arch design to provide extreme lateral stiffness.

The 6061 aluminum Stan's No Tubes ZTR Arch Rim is drilled for 32 spokes with no eyelets. The rim’s width is 24.4mm. The effective rim diameter (ERD) is 540mm (26 inch) or 600 (29 inch). The ZTR Flow rim is for disc brake systems only. If you want to stay superlight, use the small 5g valve stem and Stan’s yellow spoke tape. If you want to use the heavier-duty 38g rim strip, it is best to enlarge the inner cavity valve hole to 3/8in —and once this is done, the 5g valve stem will no longer work. The rim works with and without tubes. Maximum tire pressure for 2.3in or larger tires is 40psi, 2.0in+ (43psi), 1.5in+ (50psi) and 1.0in (55psi). Choose 26 or 29 inch rim.

Tubeless 101: The Why and the How Explained.