Frequency rims are renowned for their craftsmanship, durability, rigidity, and tubeless simplicity. A UST-compliant inner rim profile provides standards-driven consistency while a tape and sealant system eliminates precious rotational weight. Our legendary I-Beam, 4D Drilling, and WT69 Alloy further aid in lateral and torsional strength while maximizing lifespan. Add CID and you can walk into any shop and not worry about proprietary parts needed. Now available in 27.5 sizes as well. WEIGHT 542g; HOLE 32; INNER RIM WIDTH 29mm; ERD 562; RIM SIZE DESIGNATION 29-584 Frequency rims are renowned for their craftsmanship, durability, rigidity, and tubeless simplicity WT69 ALLOY 20% higher yield than 6000 series aluminum; tougher and stiffer than their heavier comp 4D drilling process create a perfect interface between spoke and rim reducing binding and the need f TCS rim profile is especially designed for TCS or UST tire