The Sun Ringle CR-18 is a durable, single eyelet, inexpensive touring rim.Triple-box construction for durability. Ample 22.5mm width works well with a variety of tire widths. Features "ABT" brushed brake tracks for consistent braking. Item Specifications: Color, Black/Silver, Hub Drilling, 32, Brake Track, Machined, Rim Width (Internal), 18 mm, ISO Diameter, 559 / 26" mtn, Rim Material, Alloy, Manufacturer Spec ERD (mm), 548 mm, Rim Center Offset (mm), 0 mm, Tire Type, Clincher, Wheel Size, 26", Weight, 440 g, Valve, Presta,.