WTB's flagship CZR carbon rims deliver minimal rotational weight and fine-tuned compliance to make you feel at one with the terrain. Reinforced spoke holes, TCS 2.0 technology, an asymmetrical design and two years of development make them the most dependable carbon rims on the market. CZR rims set themselves apart from the pack by providing unbeatable strength and ride quality at a more affordable price. Available in i23 and i30 inner widths to satisfy the needs of both gravel and mountain riders.Reinforced spoke beds, proven 4D angled spoke hole drilling and an asymmetrical design…all the necessary ingredients of an incredibly durable rim. Two internal width options available: 23mm for the gravel-centric and 30mm for the mountain-focused. Item Specifications: Brake Track, None, Color,.