Our flagship CZR carbon fiber rims provide minimal rotational mass and precisely tuned compliance to keep you feeling your best off-road. Reinforced spoke holes, TCS 2.0 technology, asymmetric construction, and two years of development make these the most reliable carbon rims on the market. CZR rims stand out from the competition, providing unmatched durability and ride quality at a more affordable price. Available in i23 and i30 internal widths to meet the needs of both gravel and mountain bike riders. Reinforced spoke holes, proven 4D hole drilling, and asymmetric construction… all essential ingredients for an incredibly durable rim. Two internal width options… 23mm for gravel and 30mm for MTB. Compared to the competition, lab testing proved that our CZR carbon fiber rims are overall lighter, more impact-resistant, and laterally stiffer while maintaining vertical compliance. Specifically, our CZR i23 rims were 38% more impact-resistant than their direct competitors, while our CZR i30 rims were 10% more impact-resistant. Number of holes: 32 Material: Carbon Size: 29'' 622x30C Weight: 484g Technologies: TCS2.0, I-Beam, 4D angled spokes compatible with disc brakes Color: black