size: 29",internal/external: 25/28.4mm,holes: 32h,ERD: 601mm (1.5mm offset),color: black/gray,weight: 399g,Stans heritage comes full circle with the latest generation of Crest rims. Built for speed and optimized for 40mm gravel tires and XC tires up to 2.3",25mm wide asymmetric rim designed to build an even stronger overall wheel,(BST-Asymmetric) Bead Socket Technology Asymmetric features a wider inside rim cavity with shorter sidewalls, equalizing resistance to dents and tire bead retention on both sides of the rim,WideRight: Provides the optimal volume without distorting the tread pattern or the side knobs so that they are in the correct position for cornering. Proper tire profiles not only allow for optimal tire performance but also allows the tire to do its secondary job of protecting the rim as well as the tires sidewall,Low profile rim shape offers an unbeatable ride quality with a light and durable but forgiving 6069 aluminum construction, a welded joint and reinforced spoke bed,For use with standard tires or fully tubeless compatible with Stans yellow tape and valve stems sold separately, use SX-806* and SX-811*,Optimal WideRight tire sizing up to 2.3"